Upon attaining the throne, Abd-er-Rahman began to turn his energies to the development of Cordova. He had a passion for building. A new palace arose, mosques and baths were erected, and an aqueduct was constructed to bring pure water from the mountains. In 786 Abd-er-Rahman supervised the building of the huge and splendid Mezquita. In character the first Omeyyad ruler was humane, eloquent, and brave. He had red hair, a fresh skin, and high cheek-bones. His form was tall and supple, and he was fond of exercise, especially the sport of falconry. His dress was always of white linen, and he lived simply. There are, however, blots upon the reputation of Abd-er-Rahman I. He was of violent temper, and subject to strong prejudices. His treatment of Abu Othman, Temain, and other allies, who had assisted him in gaining power, was not generous. He reigned for over thirty-three years, and was buried in Cordova. Hisham, son of Abd-er-Rahman, succeeded in the government of Cordova. He was esteemed as a wise king, and under his direction the work of building and adorning the Mezquita was continued. Hisham founded schools for teaching the Arabic language, and he restored the long bridge over the Guadalquivir. The next ruler was Hakem, who continued the work of enlarging and improving the mosque. This sovereign was soon confronted with the trials of a rebellion in the city, and a very grievous period of famine. A poet of Cordova wrote: ‘Time has brought on sterility and famine, but the calamity itself has proved a benefit to Al-Hakem. It has insured his rule, and delivered him of many a rebellious subject.’ Hakem was the first king to give regular pay to the army. He left a family of twenty boys and twenty girls, and the throne descended to one of his sons, Abd-er-Rahman II. The fourth Omeyyad sultan was an encourager of poets, painters, and philosophers. Abu Meruan, the illustrious historian, lived in this reign, and Ziryāb, the distinguished musician, was a court favourite. When Ziryāb was on his way to the city of culture and the arts, his royal patron went out to receive him with honour and pomp. Being himself a poet and a passionate worshipper of music, Abd-er-Rahman II. was a true friend of all artists. Ziryāb, the composer, was singularly versatile. We read that he invented a new process for making linen white, that he introduced asparagus into Andalusia, invented a crystal ware, and taught the use of leather beds. It is interesting to learn that the harem of the second Abd-er-Rahman contained several cultured women. One of these was Tarūb, a favourite concubine, to whom the monarch addressed these lines: ‘When the sun rises every day to give us light, it reminds me of Tarūb. I am the happiest of mortals, since I am successful in love and prosperous in war.’ Another beauty of the court was Kalam, a woman of learning. She recited poetry and was gifted in music.