House of Tudor rose) and the House of York (whose badge was a white rose). He married Elizabeth of York to bring all factions together. On his marriage, Henry adopted the Tudor Rose badge conjoining the White Rose of York and the Red Rose of Lancaster. It symbolized the Tudor's right to rule as well the uniting of the kingdom after the Wars of the Roses. It was used by every English, then British, monarch since Henry VII as a royal badge. The Tudors also used monograms to denote themselves: As noted above Tewdur or Tudor is derived from the words tud "territory"
House of Tudor Catholic Mary I. 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 (), 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