The House of Gadi was a dynasty of kings of the Northern Kingdom of Israel. The dynasty is also called the House of Menahem, after its founder. The dynasty lasted for only twelve years and ruled from the then capital of Israel, Samaria. The dynasty is so named because Menahem was the son of Gadi. Some have speculated that Gadi was a scion of the tribe of Gad.
Two kings of Israel came from the dynasty - Menahem and Pekahiah. Menahem became king of Israel in the thirty-ninth year of the reign of Azariah, king of Judah. He reigned in Israel for ten years. He was succeeded by his son Pekahiah. Pekahiah became king in the fiftieth year of the reign of Azariah.
After a reign of two years, Pekahiah was assassinated by Pekah, son of Remaliah, one of his chief officers with the help of fifty men of Gilead. Pekah succeeded Pekahiah as king. Petah's dynasty is known as the House of Remaliah.