Alan II, Duke of Brittany

Alan II (died 952), nicknamed Wrybeard or Twistedbeard, Alan Varvek in Breton, was Count of Vannes, Poher, and Nantes, and Duke of Brittany from 938 to his death. He was the grandson of King Alan the Great by Alan's daughter and her husband Mathuedoï I, Count of Poher. He expelled the Vikings from Brittany after an occupation that lasted from 907 to about 939.

He had to take refuge, along with his father Mathuedoi I, with the English king, Edward the Elder, because the Norsemen had invaded Armorica. The Chronicle of Nantes reports:

Alan became ruler of Brittany at the end of a 33-year interregnum after the death of his maternal grandfather, Duke Alan the Great. He landed at Dol in 936, at the invitation of the monk Jean de Landévennec and with the aid of Edward's successor, Athelstan the Glorious. By 937 he was master of most of Brittany, having forced the Vikings back to the Loire.

In 938, he was elected Brittonum dux. On 1 August 939, with the aid of Judicael (Berengar), count of Rennes, and Hugh I, count of Maine, his victory was made complete by defeating the Norse at Trans. Alan declared that date a national holiday.

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