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Male Marmaduke De Thweng Click to view Marmaduke De Thweng in the family tree

Marmaduke was born about 1234 in Kilton Castle, Cleveland, Yorkshire, England.  He died after 1294 in Castleton Castle, Derbyshire, England.

Marmaduke's family with Lucy De Brus

‌Marmaduke and Lucy De were married in a religious ceremony in 1252 in Kilton, Thwing, Durham, England.  They had two sons named Robert and Marmaduke.

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