Johann Jakob Fugger

[3] Johann Jakob inherited the business from his father's brother Anton Fugger in 1560 but did not prove so fortunate in his business dealings - the family had lent money to Charles V, Holy Roman Emperor, landing them in deep trouble when Spain went bankrupt.

Johann Jakob had to sell off his whole collection (except his library) to improve matters and handed the business over to his cousin Marcus (1529–1597), who was able to consolidate it.

[4] On Titian's advice, Johann Jakob brought Titian's pupil Antonio Ponzano to Augsburg to paint frescoes in the inner courtyard of the Fuggerhäuser - frescoes had already been painted on the building's inner courtyard and outer wall by Hans Burckmair the Younger (1500–1562) and Albrecht Altdorfer.

Johann Jakob is also thought to be the author of the two folio-volume Wahrhaftigen Beschreibung des österreichischen und habsburgischen Rahmens, Herkommens, Geschlechte, Fortpflanzung (True Description of the Austrian and Habsburg Houses...), written in German, with over 30,000 coats of arms, seals, portraits and other images.

Copies of it survive in libraries in Vienna and Dresden, Lambécius and Rollar published fragments from it and Sigismond de Birken published an extract under the title Spiegel der Ehren des höchstlöblichen Kayser- und Königlichen Ertzhauses Oesterreich (Mirror of the Lords of the most high Imperial and Kingly House of Austria).