The
Kingdom of Brittany was a short-lived vassal-state of the
Frankish Empire that emerged during the
Norman invasions. Its history begins in 851 with
Erispoe's claim to kingship. In 856, Erispoe was murdered and succeeded by his cousin
Salomon. The kingdom fell into a period of turmoil caused by Norman invasions and a succession dispute between Solomon's murderers:
Gurvand and
Pascweten. Pascweten's brother,
Alan, called the Great, was the third and last to be recognized as king of Brittany. After his death, Brittany fell under Norman occupation. When
Alan Twistedbeard, Alan the Great's grandson, reconquered Brittany in 939,
Brittany became a duchy until
its union with France in 1532.