Sybil BEAULIEU 
Sybil was born about 1265 in Carlton, Yorkshire, England. Sybil's father was John BEAULIEU, Lord of Carlton and her mother was Luderaine (Laderina) de BRUS. She was an only child.
They had a son named Gilbert de.
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Children
Gilbert de STAPLETON
Gilbert de was born in 1291 in Stapleton, Yorkshire, England. He died before June 23rd, 1324 in Bedale, North Riding, Yorkshire, England.