'Sons in law' in the Bible

And the men said to Lot, Have you anyone here besides yourself? Bring your sons-in-law, and your sons, and your daughters, and whatever you have in the city, bring them out of this place.

And Lot went out and spoke with his sons-in-law, who married his daughters, and said, Get up and get out of this place, for Jehovah will destroy this city. But he seemed as one that mocked to his sons-in-law.