Leonardo’s models take virtual flight

Google Arts & Culture, in collaboration with 28 museums, libraries and historic sites with collections of works by Leonardo da Vinci, has created an online hub dedicated to art, inventions and writings of the great Renaissance polymath. Inside a Genius Mind is the largest online retrospective of Leonardo’s works ever assembled with high-resolution scans of more than 3,000 drawings on 1,300 pages of Leonardo’s notebooks. His sketches, architectural designs, anatomical studies, weapons systems, flying machines and more, many of them never before available online, have been digitized and uploaded to the portal.

The online hub offers visitors a traditional route through Leonardo’s story. You can read his biography, examine his individual paintings in high definition with extensive annotations, and explore the notebooks. You can also find out more about his life and works by accessing the Leonardo Library, browsing categories of knowledge (architecture, anatomy), specific codices and different subjects in his sketches and types of inventions.

One of the world’s foremost experts in Leonardo da Vinci’s oeuvre, University of Oxford art historian Martin Kemp, has been enlisted to help curate the portal, alongside a curation team that includes a Machine Learning element. This curation team organized Leonardo’s notebooks into five themes — Secrets of Flight, Spirals, Earth as a Body, Perpetual Motion and Destruction — to allow users to move through his ideas and creative processes in the same lateral, thought-skipping way Leonardo himself used when he wrote them.

My favorite section is 10 Leonardo Inventions in 3D. Seeing models created from his notebooks has always been a highlight of museum exhibitions dedicated to Leonardo’s genius. It is sheer joy seeing his ideas and sketches converted into realistic 3D animations. The Leocopter, which the colossal bronze statue of him holds in one hand at the entrance to Fiumicino Airport in Rome, and the armoured tank both make the cut.

3D animated model of Leonardo da Vinci's flying machine.

Luxurious Last Supper tapestry exhibited in Turin

A luxurious tapestry version of Leonardo da Vinci’s Last Supper has gone on display at the Reggia di Venaria in Turin as part of an exhibition on how popes used tapestries in rituals and ceremonies. The combination of religious ceremony and tapestry spread from the Vatican to France and from there to the other courts of Europe. The Last Supper tapestry is the keystone of the exhibition as it played an important role in the Holy Week ritual of the washing of the feet.

The tapestry was commissioned by Louise of Savoy and her son, the future King Francis I of France, around 1514 when Leonardo was still living. It’s even possible Leonardo saw it with his own eyes, as he moved to the Château du Clos Lucé in Amboise by invitation of Francis I in 1516. Francis appointed him “first painter, engineer and architect to the king” so he could spend the final three years of his life pursuing his many and varied interests in comfort and ease.

Leonardo was enormously famous in his lifetime and the Last Supper he painted on the refectory wall of the Church of Santa Maria delle Grazie in Milan was recognized as an innovative masterpiece as soon as it was completed in 1498. It was also instantly endangered due to Leonardo’s experimental approach, painting in tempera on dry plaster. Several copies were made in the early 16th century, the earliest documented copy commissioned in 1506.

Francis and Louise commissioned Brussels weavers to make the tapestry copy from a cartoon by an unknown artist in late 1516. It is 30 feet long and 16 feet high and woven exclusively of silk, gold and silver threads. The supper scene itself is an exact copy to scale of the original, even capturing Leonardo’s signature sfumatura technique, but the setting is very different from the minimalist space with the dark coffered ceiling of the original.

Instead, the tapestry sets the table inside a bright courtyard, draped with two millefleurs tapestries on each side with a High Renaissance architectural backdrop. A triple-arched bridge connecting two buildings inlaid with multi-colored marbles and a distant landscape of a stream flowing down hills. Above the arches hanging from the balustrade directly in line with Jesus’ head below is the coat of arms of the King of France with the golden fleurs-de-lys on a blue background. A border on all four sides is woven with symbols of Francis and Louise — salamanders, winged horses, knots and monograms.

Francis presented the tapestry to Pope Clement VII in 1533 as a lavish gift celebrating the marriage between Francis’ son, the future Henry II, and the pope’s niece Catherine de’ Medici in Marseilles. The wedding was politically important, cementing the alliance of papacy and France five years after the Sack of Rome by the forces of Holy Roman Emperor Charles V.

It was highly regarded, even among the Vatican’s exceptional tapestries by the likes of Raphael, and it was deployed on special occasions like the Corpus Cristi procession and Holy Week. Still, it began to deteriorate from use. It was first restored in 1681, and less than a hundred years later in 1763, Pope Pius VI had a copy made to use in processions and ceremonies, ensuring the long-term preservation of the original. It has only left the Vatican once since its presentation in 1533: in 2019 when it was exhibited at the Château du Clos Lucé, Leonardo da Vinci’s final residence, on the 500th anniversary of his death.

It was restored by the Vatican’s unique textile conservation team before its departure in 2019. You can see the team at work, stitching tulle netting to reinforce the back of the tapestry, in this fantastic video.

Cromwell’s Book of Hours depicted in Holbein portrait identified

New research has found that a luxurious printed and illuminated Book of Hours in the Wren Library of Trinity College, Cambridge, belonged to Thomas Cromwell, Chief Minister of King Henry VIII until his boss had him beheaded in 1540. The attribution is confirmed by an unimpeachable source: a portrait of Cromwell by Henry’s court painter Hans Holbein the Younger in 1532-3. The book is the only object depicted in a 16th century portrait known to survive.

The Book of Hours was printed on vellum in Paris by Germain Hardouyn in 1527/8. After printing, hand-painted illuminations were added. It was then bound in a sumptuous velvet cover with silver gilt edges and clasps (one clasp now missing). Central boxes on the front and back covers and the clasps were each set with a large garnet.

It was one of three known copies printed by Hardouyn in the same run. The other two went to no lesser personages than Catherine of Aragon and Anne Boleyn. This example is the only one of the three still in its original binding. The books were personalized for their owners, so even though they were from the same print batch, they were not identical. The printed texts are the same, but the illuminations were hand-painted and they reflect the tastes (and budgets?) of their owners. Anne’s Book of Hours is larger and has the deluxe illumination package: the drawings are more ornate and detailed with extra decoration in the borders. Catherine’s is the least elaborately decorated. Cromwell’s is in between the two queens’ in richness of detail.

That Anne, Catherine and Thomas all had the same Latin prayer book underscores how fluid the lines were between the practices of English Catholics and the Protestant reformers at this time. The three held very different beliefs; even the two Protestants Anne and Cromwell diverged significantly on doctrinal matters. Yet, Cromwell owned, used and celebrated the traditionally Catholic text, showing it off front and center on his prestigious portrait by the king’s favorite painter.

The Book of Hours was donated to the library of Trinity College in 1660 by Anne Sadler or Sadleir, wife of Ralph, a wealthy landowner whose grandfather was Sir Ralph Sadler, Thomas Cromwell’s secretary and successor as Secretary of State to Henry VIII. Ralph had been raised in Cromwell’s household since he was seven years old. Cromwell was a mentor and teacher to him and they were close friends throughout his lifetime. Sir Ralph Sadler was the executor of Cromwell’s will and, even more directly on-point, was named in the will as the recipient of all of his former mentor’s books.

Anne Sadler was also closely connected to the Tudor court (her father had been Elizabeth I’s Attorney General and later Lord Chief Justice) and was an avid collector of books and coins. Over the course of two decades (1649-1669), she donated her correspondence, diaries, manuscripts and books to Trinity College, Cambridge, which her father had attended. The Book of Hours with silver gilt borders and garnet gemstones was donated along with The Trinity Apocalypse, the college’s most famous illuminated manuscript.

The Books of Hours were probably commissioned and gifted to the recipients by a single individual. This person must have had very deep pockets to afford at least three of these extremely expensive luxury items, and a connection to all three parties. That narrows down the likely candidates to Henry or Anne herself.

Using the hallmarks on the silver binding, researchers were able to discover the maker of the silver and gemstone binding. They looked through whole books of makers’ marks to determine they weren’t English, Dutch or Flemish. Then, with the aid of French experts, the maker was identified as Pierre Mangot of Blois, goldsmith to King Francis I of France, who made the binding in 1529-30.

Anne spent the late 1510s and early 20s at the court of Francis I; this is where she was educated in literature, religion and the arts, developing a strong interest in illuminated manuscripts. She was maid of honor (a sort of junior lady-in-waiting) to Francis’ wife Queen Claude for seven years before returning to England in 1522. She knew Pierre Mangot, a fact supported by a chain Anne’s brother George had Mangot make for him a few years later.

Given the persistent connections between the Boleyn family and Francis’ goldsmith, and how extra-fancy Anne’s version of the Book of Hours is, it’s probable she commissioned the printing and gifted the copies to Cromwell and Catherine (who was at this time still married to Henry but had been publicly sidelined in favor of Anne while the king sought his annulment).

Cromwell’s Book of Hours will go on display at Hever Castle, childhood home of Anne Boleyn, where her copy is part of the permanent collection. Catherine’s copy belongs to The Morgan Library in New York City, but it was recently on loan at Hever, exhibited side-by-side with Anne’s for the first time. Catherine’s was returned to The Morgan just a week ago, so Cromwell’s is stepping in to the breach. Trinity College has digitized the Book of Hours for virtual visitors to browse.

16th c. frescoes found in Palazzo Vecchio’s “secret staircase”

Plaster removal from the vaulted ceilings and walls of an unused “secret” staircase in Florence’s Palazzo Vecchio has revealed 500-year-old frescoes in the grotesque style. Surviving records note that the secret staircase was built in the middle of the 16th century to provide a quick escape route to Cosimo I de’ Medici, Duke of Tuscany, and his wife Eleonora di Toledo, from the Terrace of Saturn to the ground floor exit on Via dei Leoni. Over the centuries, the barrel vaulted ceilings and walls were covered in multiple layers of plaster. The grotesque paintings emerged after restorers painstakingly removed layer after layer to reach the original plaster. There has been some paint loss and delamination of the plaster from the wall, so as the decorated surfaces are exposed, conservators having been working to restore and stabilize them.

The Palazzo Vecchio, Florence’s town hall built in the early 1300s, became the Medici ducal palace as well as the seat of government in 1540 when Duke Cosimo I de’ Medici moved there. He was the second duke of Tuscany, the first to inherit the title since its establishment as an inherited title. The first duke, Alessandro de’ Medici, was embroiled in scandals and was ultimately assassinated by a family member with a competing claim to the duchy. Alessandro had no legitimate issue, so the dukedom went to Cosimo, a distant relative from a junior branch of the family.

The teenager had never even lived in Florence and was a complete unknown in the city. He was on shaky political ground, and sought to shore up his power by associating his rule with Florence’s (and his family’s) history. Moving into the Palazzo Vecchio conveyed continuity and strength while reinforcing his position as the sole ruler of the duchy. Given the tenuousness of his position, having a secret escape route built so he and his new bride could get out of the building without having to descend the monumental staircase was only prudent.

When conservation is complete, the staircase will be integrated into the emergency exit system for the palace offices, thereby returning it to its original function.

Tudor gold signet ring linked to Boleyns on display at Hampton Court Palace

A gold and enamel signet ring engraved with the head of a bull, emblem of the Boleyn family, has gone on display at Hampton Court Palace.

The ring’s bezel is engraved with the head of a bull facing forward with large horizontal ears and vertical horns. Between the horns is a letter that is hard to make out. It could be an “e,” an “r” or a “t.” Solar rays filled with white enamel radiate down the shoulders of the bezel. On each shoulder is a flattened oval panel engraved with religious figures — Virgin and Child on one side, St. Catherine of Alexandria on the other.

The bull was on the arms of Thomas Boleyn, Anne’s father, and the arms of his son George. As with many signet rings, the iconography is probably canting, a play on the family name. In this case, “Boleyn” was often written as “Bullen,” which is why bull heads were incorporated into the family arms. They’re usually in profile, though. No other examples of a facing bull are known from Boleyn signatures or arms.

The find site is further evidence of the ring being connected to the Boleyn family. It was discovered in 2019 near Shurland Hall on the Isle of Sheppey, an island off the northern coast of Kent. Less than 50 miles east of Hever Castle, the Boleyn family seat where Anne was raised, Shurland Hall was one of the greatest estates in medieval Kent. The original 13th century castle was rebuilt between 1510 and 1518 by Thomas Cheyne, a relative of the Boleyns and a trusted courtier to every Tudor monarch from Henry VII to Elizabeth I. He was Sherriff of Kent, Justice of the Peace for Kent, Lord Ward of the Cinque Ports and also served as Treasurer of the Household, privy councilor and as ambassador to France three times.

He was a particular favorite of Anne Boleyn’s who advocated successfully for his promotion before her marriage to Henry. In October 1532, Cheyne was singled out for the cripplingly expensive honor of hosting the royal couple and their retinue of hundreds. They spent three days at Shurland Hall on their way to Calais to secure the support of King Francis I of France for their marriage. Henry and Anne would marry in secret one month later.

The ring is not thought to have belonged to Anne herself, due to the fact she bore her own arms after her marriage to King Henry VIII, with this signet ring also being a typically male item of jewellery which would have been too large for a woman. However, both Thomas and George held the title of Viscount Rochford from 1525 and 1529 successively, meaning that either man would have been entitled to bear the monogram for Rochford. The ring features an initial that could denote the letter R – further strengthening the claim that it has links to the two Boleyn men. […]

The religious symbolism may well also hold the key to the ring’s original owner, with St Catherine being known for her scholarly defence of her faith, and the choice of saint perhaps referring to Henry’s first wife, Katherine of Aragon. There is a possibility the ring may have alternatively belonged to another wealthy Tudor who bore the same badge, although this does not change the fact that is a remarkable piece of surviving jewellery from the era.

This exquisite object has been acquired by Historic Royal Palaces (HRP) – the charity that cares for Hampton Court Palace. It will now be shown to visitors in the Great Hall, which sits at the very heart of the surviving Tudor palace (the apartments built for Queen Anne Boleyn were lost in the 17th century). Home to the last great medieval hammerbeam roof hall in England, work began on the Great Hall began in 1532 to mark the King’s marriage to Anne Boleyn, with motifs relating to the new Queen incorporated into the design.