By 1236 AD, the Reconquista was essentially completed and Europeans had retaken the Iberian peninsula from the Muslims, but the Emirate of Granada, a small Muslim vassal of the Christian Kingdom of Castile, remained in Spain until 1492 AD. During the Reconquista, Muslims were forced to either convert to Catholicism or leave the peninsula. The descendants of Muslims who converted to Christianity were called the Moriscos (meaning "Moor-like") and were suspecting of secretly practicing Islam. The Moriscos used a language called Aljamiado, which was a dialect of the Spanish language (Mozarabic) but was written using the Arabic alphabet. Aljamiado played a very important role in preserving Islam and the Arabic language in the life of the Moriscos; prayers and the sayings of Muhammad were translated into Aljamiado transcriptions of the Spanish language, while keeping all Quranic verses in the original Arabic. During this period, a version of the Alexander legend was written in the Aljamaido language, building on the Arabic "Qisas Dhul-Qarnayn" legends as well as Romance language versions of the "Alexander romance".