John [1st Earl of Somerset] BEAUFORT
He married Margaret [Baroness] Holland Bef 28 Sep 1397 at of Upholland, Lancashire, England . Margaret [Baroness] Holland was born at of Upholland, Lancashire, England 1385/86 .
They were the parents of 2
children:
Joan Beaufort
born Abt 1398.
John [1st Duke of Somerset] Beaufort
born 25 Mar 1404.
John [1st Earl of Somerset] Beaufort died 16 Mar 1409/10 at St.Catherine by, London, Middlesex, England .
Margaret [Baroness] Holland died 30 Dec 1439 at St.Saviour's Mon, Bermondsey, Surrey, England .