Lady Margaret Countess (De Holand) Somerset Plantagenet

Margaret married Sir John Beaufort 1st Earl of Somerset, Marquis of Dorset and Somerset Plantagenet, son of John of Gaunt and Kathryn Swynford, on 28 Sep 1397 in Upholland Castle, Upholland, Lancashire England.⁴⁴¹ (Sir John Beaufort 1st Earl of Somerset, Marquis of Dorset and Somerset Plantagenet was born in 1371 in Chãateau De Beaufort, Maine-et-Loire, Pays de la Loire Franc, died on 16 Mar 1410 in St Catherines Hospital by the Tower, London, Middlesex England and was buried in Abbey church on Tower Hill, London, Middlesex England ⁴⁴¹.)