Question: What is the date of death of Philip Ii Of Spain's mother?
Sentence (from "Isabella of Portugal"): Isabella of Portugal (24 October 1503 – 1 May 1539) was Holy Roman Empress and Queen of Spain, Germany, Italy, Naples and Sicily and Duchess of Burgundy by her marriage to Emperor Charles V. Married to Charles V from 1526 to her death in 1539, she was Queen regent of Spain during the absences of her husband during 1529-1533, 1535-1536 and 1538-1539.
Relevant evidence: Yes