An important victorious battle for this polity is sometimes given a name that translates as "slipper
An important victorious battle for this polity is sometimes given a name that translates as "slippery ground" due to the excessive bloodshed. After this polity's fall, a small offshoot dynasty known as the Banu Ghaniya persisted for many decades. Its origins can be traced to the tribal leader Yahya ibn Ibrahim, and it lost at the battle of Ourique during the reign of Ali ibn Yusuf. Earlier, at the earlier battle of Sagrajas, its most successful leader, Yusuf ibn Tashfin, won a decisive victory over forces under Alfonso VI. This dynasty essentially ended after its capital of Marrakesh was conquered by its successor dynasty in 1147. For 10 points, name this Muslim Berber dynasty of north-west Africa and Spain that was succeeded by the Almohads.
An important victorious battle for this polity is sometimes given a name that translates as "slippery ground" due to the excessive bloodshed.
Almoravid dynasty