German library buys 400-year-old album of drawings by European royalty for €2.8m

Art dealer Philipp Hainhofer's 16th-century "friendship book" contains inscriptions from Holy Roman Emperor Rudolf II and Cosimo de’ Medici

An inscription by Rudolf II, Holy Roman Emperor (1576–1612) The Herzog August Bibliothek Wolfenbüttel (HAB)

An inscription by Rudolf II, Holy Roman Emperor (1576–1612) The Herzog August Bibliothek Wolfenbüttel (HAB)

A German library has purchased a 400-year-old album containing illustrations and inscriptions from European emperors, kings, and princes for €2.8m.

The album originally belonged to Philipp Hainhofer (1578-1647), a well-known diplomat and art dealer from Augsburg, Germany, who travelled between Europe’s courts. Over a period of 50 years, he asked those he met to contribute to his “friendship book,” which contains around 100 drawings typically commissioned by dignitaries from artists to accompany their signatures.

The Herzog August Bibliothek in Wolfenbüttel purchased the book in a private sale arranged by Sotheby’s. Hainhofer was involved in setting up the library, which first tried to purchase his book after his death some 373 years ago according to Katharina zu Sayn-Wittgenstein, senior director at Sotheby’s in Hamburg.

Double-sided depiction of flowers, shells and insects The Herzog August Bibliothek Wolfenbüttel (HAB)

Contributors to Hainhofer’s album include Holy Roman Emperor Rudolf II, Cosimo de’ Medici, the king of Denmark and German princes and princesses. The book helped Hainhofer gain access to Europe’s leading decision-makers.

The album has not been on public display and was believed to have been lost forever until 2006. It is considered the most important of about 25,000 such friendship books that have been documented worldwide and offers “unparalleled insights into the early modern political trading culture and art trade,” Peter Bürschel, the director of the Herzog August Bibliothek, said in a statement.

The purchase was financed by the Cultural Foundation of the Federal States, the German Culture Ministry, the Volkswagen Foundation, the Ernst von Siemens Art Foundation, the Lower Saxony Foundation and the Rudolf August Oetker Foundation. A 3-year research project into the book is to be funded by the state of Lower Saxony and the Volkswagen Foundation.

The acquisition “ensures that this extraordinary national cultural treasure will be accessible to the public for the long term,” said Björn Thümler, the culture minister for Lower Saxony.