continued to weaken, and by 1104, with his treasury exhausted, he was forced to sue for peace. A treaty was subsequently made, which acknowledged Muhammad as the ruler of southern Iraq, northern Iran, the Diyar Bakr, Mosul and Syria, while Berkyaruq was acknowledged as the ruler of the rest of Iran (including Isfahan) and Baghdad. The treaty, however, did most likely not display the true circumstances of the situation. The following year (1105), there were no coin mints citing the name of Berkyaruq in the central Islamic lands. En route to Isfahan, he died of tuberculosis at the age of 25 near the town of Borujerd, and was succeeded by his infant son Malik-Shah II. Baghdad was subsequently captured by Muhammad, who had Malik-Shah II killed. Notes References Sources Further reading Seljuk rulers 1105 deaths Year of birth unknown 11th-century Turkic people 12th-century Turkic people People of the Nizari–Seljuk wars People from Isfahan Tuberculosis deaths in Iran 12th-century deaths from tuberculosis