He married Margaret Spencer . Margaret Spencer was born at of St. Peters, Cornhill, London, England Abt 1528 .
They were the parents of 11
children:
John Cowper
born Abt 1550.
Margaret Cowper
born Abt 1552.
Thomas Cowper
christened 28 Aug 1554.
Richard Cowper
christened 15 Sep 1555.
William Cowper
christened 17 Oct 1556.
Frances Cowper
christened 4 Aug 1558.
Balthazar Cowper
christened 13 Feb 1559.
Frances Cowper
christened 5 Jun 1562.
William Cowper
christened 3 Dec 1564.
Margaret Cowper
christened 24 Nov 1566.
Mary Cowper
born Abt 1568.