John 'Monoculus' de BURGH 
John 'Monoculus' de was born about 1032 in Knaresborough Castle, Knaresborough, Yorkshire, England. John 'Monoculus' de's father was Eustace de BURGH, Seigneur de TONSBYRGH. His paternal grandfather was Jean de CONTEVILLE, Earl of Comyn. He was an only child. John 'Monoculus' de is no longer alive.
He had a biological son named Eustace.
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Children
Eustace FITZJOHN. Lord of Knaresborough
Eustace was born about 1065. He died in July 1157 in Basingwork, North Wales.