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Male John de Thweng Click to view John de Thweng in the family tree

John was born in 1261 in Kilton Castle, York, Eng.  John's father was Marmaduke Thweng and his mother was Lucia (Lucy) de Brus.  His paternal grandparents were Robert Thweng and Matilda Kilton; his maternal grandparents were Piers  II de Brus and Hawise de Lancaster. He had two brothers named Robert and Lord Marmaduke.  He was the second oldest of the three children.

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