Complex sentence: According to one story, when saint Willibrord landed in Flushing with a bottle in the seventh century, he shared its contents with the beggars he found there while trying to convert them.
Split into simpler sentences: According to one story, when Wilibrord landed in Flushing with a bottle in the seventh century. He shared the contents of his bottle with the beggars he found there while trying to convert them.