The Saadian dynasty (16th and early 17th centuries), who used Marrakesh again as their capital, did not lavish much attention on Fez, with the exception of the ornate ablutions pavilions added to the Qarawiyyin Mosque's courtyard during their time. They built a number of new forts and bastions around the city which appear to have been aimed at keeping control over the local population. They were mostly located on higher ground overlooking Fes el-Bali, from which they would have been easily able to bombard the city with canons. These include the Kasbah Tamdert, just inside the city walls near Bab Ftouh, and the forts of Borj Nord ("Borj al-Shamali") on the hills to the north, Borj Sud ("Borj al-Janoub") on the hills to the south, and the Borj Sheikh Ahmed to the west, at a point in Fes el-Jdid's walls that was closest to Fes el-Bali. These were built in the late 16th century, mostly by Sultan Ahmad al-Mansur.