William De Forez 
William De was born about 1215 in Galloway, Wigtownshire, Scotland. He died on April 23rd, 1260 in Amiens. He was buried in Thornton Abbey, Lincolnshire, England.General Notes
SOURCES: LDS FHL Ancestal File # 9T9Q-MB (familysearch.org)
William De and Christian Of were married in a religious ceremony before April 1236.
William De and Isabel De were married in a religious ceremony. They had a daughter named Aveline De.
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Children
Aveline De Forez
Aveline De was born on January 20th, 1259 in Burstwick, Yorkshire, England. She died at the age of 15 on November 10th, 1274 in Stockwell, Surrey, England. She was buried on November 20th, 1274 in Westminster Abbey, Westminster, Middlesex, England.