Earl of Richmond as the Earl of Richmond. He had one son, Henry VII who was born posthumously circa 1456. The Earldom of Richmond was replaced by the Dukedom of Richmond which was named after Richmond and its surrounding district of Richmondshire. It has been held by members of the royal Tudor and Stuart families. The current dukedom of Richmond initially maintained the historic ties of Richmond to Brittany when it was created in 1675 for Charles Lennox: he was the illegitimate son of King Charles II of England and a noble bretonne, Louise de Penancoët de Kérouaille. From 1341, the title and
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