Salih I ibn Mansur (Arabic: صالح ابن منصور الأول) (ca. 710), was the founder of the Kingdom of Nekor, located in the Rif Mountains of Morocco. It is widely accepted that he was an immigrant from Yemen. Ya'qubi, after visiting the kingdom in the 9th century, denied this and asserted that Ibn Mansur was instead a Berber of the Nafzawah tribe. His dynasty was responsible for converting the local Berber tribes to Islam. Initially the local tribes resisted the restrictions of the new religion and soon deposed their ruler but he was later asked to return and assume power again. His dynasty, the Banu Salih, ruled the region until 1019.