Of these factions, the "Muhaisin" clan, led by Sheikh Jabir al-Kaabi, became the strongest and under his leadership the Bani Kaab were reunified under a single authority, the capital of the tribe being moved from the village of Fallahiyah to the flourishing port city of Mohammerah. Unlike previous leaders of the Bani Kaab, Jabir maintained law and order, and established Mohammerah as a free port and sheikhdom, of which he was Sheikh. Jabir also became the Imperial-appointed governor-general of the province.