Agnes de PERCY 
Agnes de was born in 1137 in Egmanton, Nottingham, England. Agnes de's father was William de PERCY and her mother was Adeliza de CLARE. She was an only child. She died at the age of 68 in 1205.
They had a son named Henry I de.
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Children
Henry I de PERCY
Henry I de was born in 1169 in Alnwick, Northumberland, England. He died after 1200.