During the fifteenth century the Moghul khans became increasingly Turkified. Yunus Khan is even mentioned to have the looks of a Tajik instead of those of a Mongol. This Turkification may not have been as extensive amongst the general Moghul population, who were also slower to convert to Islam than the khan and top amirs (although by the mid-fifteenth century the Moghuls were considered to be largely Muslim). The khans also adopted the Islamic sharia in favor of the Mongol Yassa.