Portugal's worst overseas military defeat, ending its Moroccan ambitions and triggering the absorption of Portugal into Spain's Iberian Union for sixty years.
Key Facts
- Date
- 4 August 1578
- Also known as
- Battle of Three Kings; Battle of Wadi al-Makhazin
- Outcome
- Moroccan victory; described as greatest Portuguese military disaster
- Portuguese dynasty ended
- House of Aviz
- Subsequent union with Spain
- 60 years under the Philippine dynasty
Location
Cause → Event → Consequence
Deposed Moroccan Sultan Abu Abdallah Mohammed II sought Portuguese military support to reclaim his throne, which had been seized by his uncle Abd Al-Malik I with Ottoman backing. King Sebastian I of Portugal, motivated by crusading ambitions, agreed to back Abu Abdallah's restoration bid and assembled an army to invade Morocco.
On 4 August 1578, near Ksar-el-Kebir in northern Morocco, the combined Portuguese and allied Moroccan forces of Sebastian I and Abu Abdallah Mohammed II met the larger Moroccan army of Sultan Abd Al-Malik I. The battle ended in a decisive Moroccan victory; all three titular rulers present—Sebastian I, Abd Al-Malik I, and Abu Abdallah Mohammed II—died during the engagement, lending the battle its popular name, the Battle of Three Kings.
Portugal's defeat and the death of the childless King Sebastian I extinguished the Aviz dynasty. With no direct heir, Portugal passed under Spanish rule, forming the Iberian Union under the Philippine dynasty for sixty years. Portugal permanently abandoned its attempts to reconquer Moroccan territories, and the battle reshaped the balance of power on the Iberian Peninsula.
Belligerents & Mobilization Analysis
Side A
2 belligerents
Sebastian I, King of Portugal, Abu Abdallah Mohammed II.
Side B
1 belligerent
Abd Al-Malik I, Sultan of Morocco.