Question: What is the date of death of Giordano Pierleoni's father?
Sentence (from "Giordano Pierleoni"): Pierleoni (in contemporary Latin, "Jordanus filius Petrus Leonis") was the son of the Consul Pier Leoni and therefore brother of Antipope Anacletus II and leader of the Commune of Rome which the people set up in 1143.
Relevant evidence: Yes