Question: When was Caterina Visconti's husband born?
Sentence (from "Caterina Visconti"): Caterina Visconti (1361 – 17 October 1404) was Duchess of Milan as the second spouse of Gian Galeazzo Visconti, the first Duke of Milan, and was the mother of two succeeding Dukes of Milan, Gian Maria and Filippo Maria Visconti.
Relevant evidence: Yes