'Son in law' in the Bible

For many in Judah being married by oath to him for he was son-in-law to Shechaniah son of Arah; and Johanan his son took the daughter of Meshullam, son of Berechiah.

And from the sons of Joiada, son of Eliashib the great priest, was son-in-law to Sanballat the Horonite: and I shall cause him to flee from me.