Ithobaal I (or Ethbaal) (reigned 887 - 856 BC) was a king of Tyre who founded a new dynasty. During his reign, Tyre expanded its power on the mainland, making all of Phoenicia its territory as far north as Beirut, including Sidon, and even a part of the island of Cyprus. At the same time, Tyre also built new overseas colonies: Botrys (now Batrun) near Byblos, and Auza in Libya.
Ithobaal held close diplomatic contacts with king Ahab of Israel. His daughter Jezebel married Ahab, and Phoenician influence in Samaria and the other Israelite cities was extensive.