Battle of Sagrajas
1086 battle of the Reconquista

The Battle of Sagrajas (23 October 1086), also called Zalaca or Zallaqah (Arabic: معركة الزلاقة, romanized: Maʿrakat az-Zallāqah), was a conflict fought in 1086 between the Almoravid army, led by their king, Yusuf ibn Tashfin, and the forces of King Alfonso VI of Castile. The Almoravids were called into battle by the taifas, Muslim principalities in Al-Andalus that often fought amongst themselves but united against the expanding Christian kingdoms to the north. In addition to the Almoravid forces, the Taifas, bolstered the Muslim side, tilting the battle in their favor. The battlefield became known as az-Zallaqah (meaning "slippery ground") due to the immense bloodshed that made the terrain treacherous, giving rise to its name in Arabic.
History
Status of al-Andalus
After the death of Al-Muzaffar ibn Al-Mansur ibn Abi Amir in 399 AH, his brother Abd al-Rahman Sanchuelo assumed the position of hajib (chancellor) of the Umayyad state in Al-Andalus. Within months, Sanchuelo forced the caliph, Hisham II al-Mu'ayyad bi-Allah, to name him as the heir to the caliphate. This unprecedented move angered the Umayyad princes, who began conspiring to regain control of the government.
Ultimately, Muhammad al-Mahdi Billah succeeded in killing Sanchuelo, deposing Hisham II, and declaring himself Caliph of Al-Andalus. This event marked the beginning of a turbulent period of civil strife known as the Fitna of Al-Andalus, which lasted until 422 AH. The conflict led to the disintegration of the caliphate into smaller, independent states called the Taifa kingdoms.
Among the most prominent of these were the Hammudid dynasty, who ruled Málaga and Algeciras in the south; the Banu Abbadid in Seville, the most powerful of the Taifa kings; the Dhulnunid dynasty in Toledo; the Banu Hud in Zaragoza in the north; and the Banu Amir in Valencia and Murcia in the east.
This brief starts where responsible research should: with the source description of “Battle of Sagrajas” as 1086 battle of the Reconquista. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the history & society register because the source frames it as 1086 battle of the Reconquista. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Sep 23, 2026. The linked authority identifier is Q392538. The Library of Congress control number is sh2017003659. Authority coordinates are 38.923, -6.901. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1086.
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This entry incorporates text from “Battle of Sagrajas” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.