King of Portugal. He was mainly interested in military pursuits rather then pursuing statecraft. Philip of Spain tried to reason with him about his war in Morocco. He was killed on the battlefield of Alcazar-el-Kebir. For years after his death pretenders showed up claiming to be this lost King(even though remains were buried in Portugal). A cult grew around this King and was still active in Brazil as late as the early 1800s. A recent Brazilian documentary was done about Sebastianism.
Bio by: girlofcelje