of the Lakhmid kingdom was one of the main factors behind the fall of the Sasanian Empire and the Muslim conquest of Persia as the Sasanians were defeated in the Battle of Hira by Khalid ibn al-Walid. At that point, the city was abandoned and its materials were used to reconstruct Kufa, its exhausted twin city. According to the Arab historian Abu ʿUbaidah ( 824), Khosrow II was angry with the king, al-Nu'man III ibn al-Mundhir, for refusing to give him his daughter in marriage, and therefore imprisoned him. Subsequently, Khosrow sent troops to recover the Nu'man family armor, but Hani ibn Mas'ud (Nu'man's friend) refused, and the Arab forces of the Sasanian Empire were defeated at the Battle of Dhi Qar, near al-Hirah, the capital of the Lakhmids, in 609. Hira stood just south of what is now the Iraqi city of Kufa. Lakhmid dynasty and its descendants The founder and most of the rulers of the kingdom were from the Banu Lakhm dynasty. Many modern "Qahtanite" dynasties claim descent from the Lakhmids such as the Mandharis of Oman, Iraq, and the United Arab Emirates, the Na'amanis of Oman, and the Lebanese Druze Arslan royal family. Lakhmid rulers Abbadid dynasty The Abbadid dynasty, which ruled the Taifa of Seville in al-Andalus in the 11th century, was of Lakhmid descent. In literature Poets described al-Hira as paradise on earth; an Arab poet described the city's pleasant climate and beauty thus: "One day in al-Hirah is better than a year of treatment". The ruins of al-Hirah are located south of Kufa on the west bank of the Euphrates. See also Kingdom of Hatra Tanukhids Christian Arabs Zayd ibn Amr References Sources History of the kings of Hirah, in The Fields of Gold by States and territories established in the 3rd century States and territories disestablished in the 7th century Political families of Lebanon Sasanian Empire Ancient Arabic peoples Tribes of Arabia Arab dynasties Barbarian kingdoms Christian states