The siege of Tlemcen from 1335 to 1337 was a military operation undertaken by the Marinid Sultan Abu al-Hasan Ali ibn Othman against the capital of the Zayyanid Kingdom.
The siege began in 1335, and ended with the fall of the city to the Marinids in 1337.
[1] The Zayyanid Sultan Abu Tashufin and his three sons died in battle.
[2][3] The victory of Abu al-Hasan led to the annexation of the Kingdom of Tlemcen to the Marinid Empire for a more than a decade.
[3]