Source: Yusuf ibn Tashfin (New World Encyclopedia) 2021 A.D. From the source, "Yusuf ibn Tashfin or Tashafin (reigned c. 1061 - 1106) (Arabic: يوسف بن تاشفين or يوسف بن تشفين) was an ethnic Berber and Almoravid ruler in North Africa and Al-Andalus (Moorish Iberia)...The Almoravid confederation, which consisted of a hierarchy of Lamtuna, Musaffa and Djudalla Berbers, represented the military's elite. Amongst them were Andalusian Christians and Africans, taking up duties as diwan al-gund, Yusuf's own personal bodyguard; including 2,000 black horsemen, whose tasks also included registering soldiers and making sure they were compensated financially..."A wise and shrewd man, neither too prompt in his determinations, nor too slow in carrying them into effect," Yusuf…