Example image of eyePlorer eyePlorer map for 'Boso Breakspeare': Cardinal (Catholicism) Cardinal-nephew Pope Adrian IV St Albans Cathedral Camerlengo of the Holy Roman Church Castel Sant'Angelo Schism (religion) Antipope Victor IV (1159–1164) Holy Roman Empire Pope Alexander III Santa Pudenziana Frederick II, Holy Roman Emperor Treaty of Venice British Museum Liber Pontificalis Philipp Jaffé Roman Catholic Archdiocese of Burgos Boso St Albans School (Hertfordshire) Papal election, 1159 Chancery of Apostolic Briefs