John "Fairborn" BEAUFORT, (MARQUESS OF SOMERSET)
He married Margaret de Holland, (Duchess of Clarence) Bef 28 Sep 1397 at of Upholland, Lancashire, England . Margaret de Holland, (Duchess of Clarence) was born at of Upholland, Lancaster, England 1385/86 daughter of Thomas de Holand, (Earl of Kent) and Alice Fitz Alan, (Countess of Kent) .
They were the parents of 6
children:
Henry Beaufort, (Earl of Somerset)
christened 26 Nov 1401.
John Beaufort, (Duke of Somerset)
born 25 Mar 1404.
Thomas Beaufort
born 1405.
Joan Beaufort, (Queen of Scotland)
born Abt 1406.
Edmund Beaufort, (Duke of Somerset)
born Abt 1406.
Margaret Beaufort
born Abt 1409.
John "Fairborn" Beaufort, (Marquess of Somerset) died 16 Mar 1409/10 at St. Catherine by the Tower Hospital, London, Middlesex, England .
Margaret de Holland, (Duchess of Clarence) died 31 Dec 1439 at St. Saviour's, Monasberg, Bermondsey, Surrey, england .