Margaret de Loveyne English Heiress (1372–1408) Parents Sir Nicholas Lovain Margaret de Vere Children Thomas St Clere Eleanor St Clere Richard Chamberlain, of Tilsworth, Beds Siblings Catherine Beaumont Margaret|Eleanor Beaumont John Devereux, 2nd Lord Devereux John Beaumont, 4th Baron Beaumont Joan Devereux, 3rd Baroness Devereux Partners Sir Philip St Clere Thomas St Clere