Diu is one of the named free-divinities of the air of the Nuer, best known through the prophets of the Gaawar Nuer of the Zeraf valley. In the later nineteenth century Diu seized Deng Laka (d. 1907), a man of Dinka birth raised among the Gaawar, who as Diu's prophet led the victorious battle remembered as Mut Roal ('Raid on the Arabs') against the Twic Dinka and their allies, and who mediated peace between the Radh and Bar sections of the Gaawar. After Deng Laka's death the divinity passed to his son Dual Diu, who carried its authority into the twentieth century. Like the other spirits of the air, Diu is conceived as one of the children of God, a partial manifestation of the one Spirit, Kwoth.