'Son in law' in the Bible

For many in Judah were bound by oath to him because he was the son-in-law of Shecaniah the son of Arah, and his son Jehohanan had married the daughter of Meshullam the son of Berechiah.

One of the sons of Joiada, the son of Eliashib the high priest, was a son-in-law of Sanballat the Horonite, so I chased him away from me.