[If] one eats in his father-in-law’s house in Judea without witnesses, he cannot lodge a claim concerning [her] virginity against her, because he secludes [himself] with her.  Both the widow of a non-Kohen and the widow of a Kohen have a kesubah of one hundred [zuz]. The court of the Kohanim would collect four hundred zuz for a virgin, and the Sages did not stop them.