The Dig · Vatican
The Vatican’s copy of Frederick II’s falconry treatise is backed by digitisation, cold storage in Svalbard and a text that actually watched its subjects.
Pal.lat.1071 is the Vatican’s copy of De Arte Venandi cum Avibus, written by Frederick II of Hohenstaufen sometime before his death in 1250. It is not the original. That burned or vanished in the chaos after his son Manfred inherited the throne and the library; this version was copied from Manfred’s own expanded edition. Roughly 900 bird images fill its pages, drawn from life rather than bestiary cliché.
That matters because bestiaries of the period mostly copied each other, recycling griffins and moralising nonsense about pelicans. Frederick’s text describes moulting patterns, flight mechanics and migration with a level of attention that reads like fieldwork, not folklore. DigiVatLib has the full manuscript scanned and public, so anyone can check the claim against the actual pages rather than trust a museum caption. Wikipedia’s entry lines up with the scholarly consensus on authorship and date, for what that is worth.
The diamond grade holds because the sourcing stacks: original-adjacent manuscript, open digitisation, independent confirmation, and a backup copy sitting in the Arctic World Archive inside a decommissioned coal mine on Svalbard. That last detail sounds like set dressing but it is a real preservation project, not a publicity stunt. Multiple institutions, including the Vatican Library, have deposited archival film there specifically because it survives fire, flood and bad politics.
None of this makes Frederick a modern scientist. He had falconers, scribes and probably some flattery from court artists inflating the realism of a few plates. The method is sound, the sourcing is checkable, and the find earns its grade; just don’t call a 13th-century king the father of ornithology over dinner.
Source: The Dig / the Vatican archive source