I think my favorite Luther story is where he smuggled a bunch of nuns ( including one that became his wife ) out of a convent in used herring barrels.
Kathrine (Katy) was the one that became his wife. He tried to marry her off to a number of other men, who would meet her and then send her back. When Martin asked “Well, then who will you marry?” She said “YOU!”.
My father likes to joke that Katy became the standard of what all Lutheran Grandmothers were measured by.