Question: In what year did Henry I of Castile's grandather sign a peace treaty guaranteeing his successorship to the throne of England?
Sentence (from "Treaty of Taipei"): The Sino-Japanese Peace Treaty (Chinese: 中日和平條約 ), commonly known as the Treaty of Taipei (), was a peace treaty between Japan and the Republic of China (ROC) signed in Taipei, Taiwan on April 28, 1952, and took effect on August 5 the same year, marking the formal end of the Second Sino-Japanese War (1937–45).
Relevant evidence: No