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Male William de ROS Click to view William de ROS in the family tree

William de was born about 1196 in Helmsley Castle, North Rdiing, Yorkshire, England.  William de's father was Robert de ROS and his mother was Isabella, Princess of SCOTLAND.  He was an only child.  He died in 1264 in Poitou, France.


William de's family with Lucy FITZPIERS

They had a son named William de.