The fleet returned to Southampton in June where it was visited by King Henry. In August the fleet sailed for Brest where it encountered a joint, but ill-coordinated, French-Breton fleet at the battle of St. Mathieu. The English with one of the great ships in the lead (according to Marsden the "Mary Rose") battered the French ships with heavy gunfire and forced them to retreat. The Breton flagship "Cordelière" put up a fight and was boarded by the 1,000-ton "Regent". By accident or through the unwillingness of the Breton crew to surrender, the powder magazine of the "Cordelière" caught fire and blew up in a violent explosion, setting fire to the "Regent" and eventually sinking her. About 180 English crew members saved themselves by throwing themselves into the sea and only a handful of Bretons survived, only to be captured. The captain of the "Regent", 600 soldiers and sailors, the High Admiral of France and the steward of the town of Morlaix were killed in the incident, making it the focal point of several contemporary chronicles and reports. On , the English burnt 27 French ships, captured another five and landed forces near Brest to raid and take prisoners, but storms forced the fleet back to Dartmouth in Devon and then to Southampton for repairs.