Idris 1, founder of Al Maghreb (Morocco) and it’s Islamization. He fleed Arabia during the Abbasid Era when his brothers’ Alid rebellion failed and were killed.
According to this article in Wikipedia, it implies that his brother Muhammad might’ve been a Shia.
Ibrahim's rebellion had achieved some initial successes in southern Iraq, but his camp was riven by dissent among rival Shi'a groups as to the prosecution of the war and future political objectives.