where did the name house of tudor come from
House of Tudor On 1 November 1455, John Beaufort's granddaughter, Margaret Beaufort, Countess of Richmond and Derby, married Henry VI's maternal half-brother Edmund Tudor, 1st Earl of Richmond. It was his father, Owen Tudor (Welsh: Owain ap Maredudd ap Tudur ap Goronwy ap Tudur ap Goronwy ap Ednyfed Fychan), who abandoned the Welsh patronymic naming practice and adopted a fixed surname. When he did, he did not choose, as was generally the custom, his father's name, Maredudd, but chose that of his grandfather, Tudur ap Goronwy, instead. This name is sometimes given as Tewdwr, the Welsh form of Theodore, but Modern Welsh Tudur, Old Welsh Tutir is originally not a variant but a different and completely unrelated name, etymologically identical with Gaulish Toutorix,[2] from Proto-Celtic *toutā "people, tribe" and *rīxs "king" (compare Modern Welsh tud "territory" and rhi "king"[3] respectively), corresponding to Germanic Theodoric.