Fadhl, the son of Yahya, was more liberal but less eloquent than his brother Jaafar. Harun esteemed the two brothers so highly that he entrusted his son Muhammad to the care of Fadhl, and his son Mamun to the care of Jaafar. Afterwards he made Jaafar his vizier, and sent Fadhl to be Governor of Khurasan. There Fadhl built mosques, reservoirs of water and caravanserais, augmented the army, and attracted numbers of emigrants to the country, whereby he gained the approval of Harun, who ordered his poets to sing his praises. After the execution of Jaafar, Harun took Yahya, with his son Fadhl and all the Barmekides, to Rakka, giving Yahya the option to go where he liked; but he preferred to be imprisoned with his son in Rakka. There Fadhl died in A.D. 809, and when Harun was informed of his death, he said: 'My own is not far,' and died a few months afterwards in Tus, the modern Mashad. The death of Fadhl, as a generous patron, was bewailed by several poets, such as Abul Hojna, Otbi, Abu Nuwas, and others. Fadhl was also notable for his filial piety, and when the use of cold water injured the health of his father whilst they were in prison, he used to warm the water by placing a pot of it on his own stomach. Jaafar (the brother of Fadhl and a son of Yahya), who was slain A.D. 802, is to be mentioned here, not for his tragic fate, which is well known, but rather for his literary attainments, especially his oratory and his style, in both of which he excelled. From his long biography, written by Ibn Khallikan, there will be given here only some extracts relating to science and literature. He was a great master of speech, and expressed his thoughts with much elegance. In one night he endorsed more than a thousand petitions addressed to the Khalif with his decisions, all of which were in perfect concordance with the law. His instructor in jurisprudence had been Abu Yusuf the Hanifite, whom his father Yahya had appointed to teach him. The favour enjoyed by Jaafar with Harun-ar-Rashid was so great that this Khalif caused one robe to be made with two separate collars, which they both wore at the same time. Ibn Khallikan narrates the traditions relating to the fall of Jaafar and his family; the one refers to his amours with Abbasa, the sister of Harun, and to the birth of a child; the other to the escape of a member of Ali's family entrusted to Jaafar's guardianship by Harun. The true cause was probably the Khalifs envy of the power, wealth, and generosity of the Barmekides, along with the backbitings of their enemies. Jaafar was slain at Al-Omr in the district of Al-Anbar, his head and the trunk of his body were set up opposite to each other on the two sides of the bridge of Baghdad, and his death was lamented by various poets.