Bihzad, a famous painter, contributed to spreading the cultural fame of which rulers?

Safavid Rulers.

Muslim rulers in many Asian regions during centuries of empire building regularly commissioned artists to paint their portraits and scenes of life in their kingdoms. The Safavid kings of Iran, for example, patronised the finest artists, who were trained in workshops set up at court. The names of painters – such as that of Bihzad – contributed to spreading the cultural fame of the Safavid court far and wide.