Duke Of Somerset John Beaufort 
John was born in 1403. John's father was Marquess Of Dorset John Beaufort and his mother was Margaret Holland. His paternal grandparents were Duke Of Lancaster John Of Gaunt and Catherine Swynford. He had a brother named Henry. He was the younger of the two children. He died at the age of 41 in 1444.
They had a daughter named Margaret.
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