Trịnh Kiểm
In 1541, Mạc died and his grandson, Phước Hải, took over. In 1545, Nguyễn Kim was assassinated by a Mạc supporter. Nguyễn had two young sons (Nguyễn Hoàng and Nguyễn Uông) but Trịnh Kiểm took control of the Royal army.