Complex sentence: Matrakci Nasuh was the famous miniature painter of Yavuz Sultan Selim and Suleyman the Magnificent reigns who created a new painting genre called topographic painting.
Split into simpler sentences: Matrakci Nasuh was a famous miniature painter during the reigns of Yavuz Sultan Selim and Suleyman the Magnificent. He created a new painting genre called topographic painting.