 In February 1625, the Protestant Duke of Soubise led a Huguenot revolt against the French king Louis XIII, and after publishing a manifesto, invaded and occupied the island of Ré.He seized Ré with 300 soldiers and 100 sailors.From there he sailed up to Brittany, where he led his successful attack on the royal fleet in Blavet, although he could not take the fort after a three-week siege.