Abu Said raised an armed rebellion in 1311 in Málaga, proclaiming his son Ismail—deemed to have better legitimacy than his father, as he was a grandson of Muhammad II through Fatima—as Sultan.[11][22] He formed a rival court loyal to his son but whose authorities were only recognised inside the wilaya (province) of Málaga. In the same year, the Málagan army conquered the castles of Antequera, Marbella and Vélez. The army then moved towards Granada and defeated Nasr's army in battle at a place called al-Atsha in the Vega of Granada.