Person
William I of Sicily
William I of Sicily, called the Bad, was King of Sicily from 1154 to 1166, succeeding his father Roger II. His reign faced baronial revolts and a Byzantine invasion of Apulia, which he defeated in 1156. During his reign the Almohads took Roger II's North African possessions, ending with the fall of Mahdia in January 1160.
Cite this entry
- APA
- The Epoch Institute. (2026). William I of Sicily. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/william-i-of-sicily
- MLA
- “William I of Sicily.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/william-i-of-sicily. Accessed .
- Chicago
- The Epoch Institute. “William I of Sicily.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/william-i-of-sicily.
- Harvard
- The Epoch Institute (2026) ‘William I of Sicily’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/william-i-of-sicily (Accessed: ).
Last reviewed October 2026Random entry ↻