 Foillan, probably in company with Ultan, went with his brother Fursa when the latter retired to a lonely island, escaping from the multitudes who gathered around him, some of whom harboured ill-feeling towards him.From there, around 633, Fursa went through British territory to the Kingdom of East Anglia with a group of followers including Foillan and Ultan and priests named Gobán and Dicuill.There they were received kindly by King Sigeberht of East Anglia, who gave Fursa the site of a Roman shore-fort at a place called "Cnobheresburg", to build a monastery.