Asilah is in northern Morocco, approximately 30 km southwest of Tangier.The region around Asilah has been inhabited since well before 1500 BC and Phonecian settlements in the area, but the Mulsim city know as Asila dates to the Muslim conquest and the Idrisid dynasty.  It 966 the city was reconstructed by the Umayyad Caliph al-Hakim II.  In 1471 the Portuguese conquered the city, and it remained European sovereignty until 1691 when it was reconquered by Mulay Isma'il.  He built two of the cities mosques, a madrasa and hammam.  

In the 19th century the city was bombarded by the Austrians in 1829 and the Spanish in 1860.  Asilah was also an important fiefdom of the Rifi leader Mulay Ahmad al-Raisuni, who was named Pasha of the region in 1906. Spain occupied Asilah in 1911, and it reverted to Moroccan control with most of northern Morocco when the Protectorate ended in 1956.  Restored in 1978, Asilah is a resort town and a major tourist attraction.  It is best known for its annual arts festival that attracts major international talent, including graphic artists who use the city's walls as a canvas.  

Sources: 
Guiguet-Bologne, Philippe. Un guide de Tanger et de sa région. Tangier: Philip Guiguet Bologne, 1996. 

Roca, Juan, Ramon.  Tangier and its surroundings. Alicante, Spain: Roca Vincente-Franquiera, 2011.