Margaret Beaufort||p2082.htm|John Beaufort Earl Sommerset|d. 1410|p1310.htm|Margaret Holland|d. 31 Dec 1439|p1609.htm|John o. G. Duke of Lancast.|b. Mar 1340\nd. 3 Feb 1399|p1166.htm|Catherine S. Roet|b. 1350\nd. 10 May 1403|p1309.htm|Thomas Holland Earl of Kent||p1973.htm|Joan Countess of Kent|b. 29 Sep 1328\nd. 8 Aug 1385|p1386.htm|