Pope Paul III had been once one of the "cardinals Alessandro Farnese", in this case the brother of Giulia Farnese, who was the female lover of pope Alexander VI. The Goldenes Dachl is from c. 1500, so still in the time, when Alexander VI was of high importance (and also empress Bianca Maria Sforza was still of importance, which she lost, when France took Milan in 1500).
It's strange, why Alessando Farnese should have been honored at the Goldenes Dachl ... Possibly he was useful in the connection between Maximilian and Bianca Maria.
16 August 1492: became Pope, with the help of Ascanio Sforza
Created cardinal deacon in the consistory of September 20, 1493; received the red hat and the deaconry of S. Cosmo e Damiano, September 23, 1493.
https://web.archive.org/web/20120114121 ... ies-xv.htm
Emperor Fredrick III: Friedrich III. (.... † 19. August 1493 in Linz)
Bianca Maria Sforza
Am 30. November 1493 wurde Bianca Maria Sforza in Abwesenheit des Bräutigams in einer Stellvertreterhochzeit (per procurationem) in Mailand mit König Maximilian I. vermählt. .... formal marriage without presence of Maximilian.
Perhaps the Pope and Farnese were helpful in the arrangement of the marriage as a favour for the help in the pope election.