Editing Pope Gregory XIII (section)

===Youth===
Ugo Boncompagni was born the son of Cristoforo [[Boncompagni]] (10 July 1470 – 1546) and Angela Marescalchi, and paternal grandson of Giacomo Boncompagni and Camilla Piattesi, in [[Bologna]],{{sfn|Borromeo|2002|p=663}} where he studied law and graduated in 1530.{{sfn|Crowther|1999|p=8}} He later taught jurisprudence for some years, and his students included notable figures such as Cardinals [[Alessandro Farnese (cardinal)|Alexander Farnese]], [[Reginald Pole]] and [[Charles Borromeo]]. He had an illegitimate son after an affair with Maddalena Fulchini, [[Giacomo Boncompagni]], but before he took holy orders, making him the last Pope to have left issue.<ref>{{cite web|url=http://www.fiu.edu/~mirandas/bios1565.htm#Boncompagni |title=The Cardinals of the Holy Roman Church: Ugo Boncompagni |publisher=Fiu.edu |date=3 December 2007 |access-date=23 June 2013}}</ref>