Describes the campaigns of Al-Mansur bi-Ilah, the Moorish ruler of Al-Andalus known in Christian Europe as Almanzor. The work begins with a description of the situation in Spain in the second half of the 10th century, when the Christian kingdoms of the north were contending with their powerful Muslim neighbour in the south for control of the Iberian Peninsula. This is followed by a look at the Moorish army of Almanzor's time, including the fleet. The main part is an explanation of Almanzor's various campaigns between 977 and 1002, including the conquest and destruction of Santiago de Compostela in 997. It concludes with a discussion of his immediate successors Abd-Al-Malik al Muzzafar and Abd-Al-Rahman Sanchuelo and an evaluation of Almanzor's campaigns.
