Abu Bakr ibn Umar ibn Ibrahim ibn Turgut, sometimes suffixed al-Sanhaji or al-Lamtuni was a chieftain of the Lamtuna Berber Tribe and Amir of the Almoravids from 1056 until his death. He is credited to have founded the Moroccan city of Marrakesh, and under his rule the heretic Barghawatas were destroyed. In 1076, he conquered Koumbi Saleh capital of the Ghana Empire, and is credited to have brought Islam in this Western Sub-Saharan Africa region. In November of 1087, Abu Bakr died of a poisoned arrow in what is now Mauritania.

The Almoravid dynasty was a Berber Muslim dynasty centered in the territory of present-day Morocco. It established an empire that stretched over the western Maghreb and Al-Andalus, starting in the 1050s and lasting until its fall to the Almohads in 1147.