Katharine Thweng Peerage person ID=147146 Parents Isabel de Ros Marmaduke Thweng, 1st Baron Thweng Children Elizabeth Daubeney Siblings Thomas Thweng, 4th Lord Thweng Marmaduke de Thweng Robert de Thweng, 3rd Lord Thweng William de Thweng, 2nd Lord Thweng Lucy de Thweng Partners Sir Ralph Daubeney, 2nd Lord Daubeney