Arthur II, Duke of Brittany

Arthur II of Dreux(July 2, 1262 - August 27, 1312) was Duke of Brittany from 1305 to his death. He was the first son of John II, Duke of Brittany and Princess Beatrice of England.

His maternal grandparents were Henry III of England and Eleanor of Provence.

In 1275, Arthur married Mary, Viscountess of Limoges, daughter of Gui VI, Viscount of Limoges and Margaret, Lady of Molinot. Her maternal grandparents were Hugh IV, Duke of Burgundy and his first wife Yolande of Dreux. They were parents of three children:

• John III, Duke of Brittany (March 8, 1286 - April 30, 1341).
  Guy de Dreux, Count of Penthievre (1287 - 1331). Father of Joanna of Dreux.
  Pierre de Dreux (1289 - 1312).

Mary died in 1291. In May, 1294, Arthur was re-married toYolande de Dreux, Countess of Montfort, daughter of Robert IV, Count of Dreux and Beatrice de Montfort, Countess of Montfort. They were parents of seven children:

• Jeanne de Dreux (1294 - 1363). Married Robert, Lord de Cassell.
  John IV, Duke of Brittany (1295 - September 16, 1345).
  Beatrice de Dreux (1295 - 1384). Married Guy X, Lord of Laval.
  Jeanne de Dreux (1296 - 1364). Married Robert, Count of Marle.
  Alice de Dreux (1297 - 1377). Married Bouchard VI, Count of Vendôme.
• Blanche de Dreux (born c. 1300). Considered to have died young.
• Marie de Dreux (1302 - 1371). A nun.
  

Preceded by: John II

Duke of Brittany 1305–1312

Succeeded by: John III