Question: What is the date of death of Costanza Chiaramonte's husband?
Sentence (from "Ladislaus of Naples"): Ladislaus the Magnanimous (15 February 1377 – 6 August 1414) was King of Naples and titular King of Jerusalem and Sicily, titular Count of Provence and Forcalquier (1386–1414), and titular King of Hungary and Croatia (1390–1414).
Relevant evidence: Yes