The couple may have co-operated in the founding of a Benedictine nunnery near their castle at Castle Hedingham, Essex.
The fine double hammerbeam roof is attributed to Thomas Loveday, who was responsible for work on St John's College, Cambridge.
Their primary seat was Castle Hedingham in Essex, but they held lands across England, particularly in eastern England.
In 1216 King John besieged and took the Oxford's seat, Castle Hedingham, in Essex.
Oxford died 21 March 1540 at his manor of Colne, Essex and was buried on 12 April at Castle Hedingham.
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Castle Hedingham, Beauchamp Walter, Great Bentley, Great Canfield, Earls Colne, White Colne, and Dovercourt, Essex; Aldham, Belstead, Lavenham, and Waldingfield, Suffolk; Castle Camps, Hildersham, Silverley, and Wilbraham, Cambridgeshire.