The Howeitat have several branches, notably the Ibn Jazi, the Abu Tayi, the Anjaddat, and the Sulaymanniyin, in addition to a number of associated tribes. Howeitat nomads were recorded as the only tribesmen living in the southern, inland area of the al-Karak-Shawbak "sanjak" (district) of the Ottoman Empire in the 16th century. According to the Ottoman historian Qutb al-Din al-Nahrawali (d. 1582), the tribe was a branch of the Banu Uqba, the dominant tribe of the al-Karak-Shawbak region during Mamluk rule (1260–1516) and whose chieftains were officially recognized by the Mamluk authorities. The Howeitat are unusual in claiming descent from a single ancestor, an Egyptian named Huwayt. However, according to Kamal Salibi, their presence in the area may date from the 18th century, when tribes of the northern Arabian desert were being pushed northwards by expansion of the Wahhabite-associated bedouin of central Arabia; by the late 18th century the Howeitat were already laying claim to areas around Aqaba and northwards; they also laid claim to land in Egypt. They developed into a partly settled tribe, combining farming in the fertile areas of Jabal Shara with pastoralism, but early in the 20th century were rendered more or less nomadic by the activities of two rival shaikhs, Abtan ibn Jazi and Auda abu Tayi, who concentrated on raiding, collection of tribute and camel-herding. The abu Tayi subclan of the tribe were supporters of the Hashemite cause during the Arab Revolt, in which they formed an important part of Faisal's forces; Auda abu Tayi was able to muster a force of Bedouin tribesmen willing to march on Aqaba under the banner of Prince Feisal bin Hussein. The ibn Jazi subclan of the tribe remained loyal to the Ottoman Empire: their leader Hamad ibn Jazi was decorated by the empire in early 1917. In later years the Howeitat returned to farming; they were also prominent in the Arab Legion, the ibn Jazi section becoming the most powerful component in the federation. The Howeitat still have possession of large areas of land around Wadi Rum and stretching into Saudi Arabia; they have historically been a significant source of manpower for the Saudi Arabian National Guard and the Royal Jordanian Land Force.