He is known in the West as Suleiman the Magnificent and in the Islamic world , as the Lawgiver ( in Turkish Kanuni ; , alâ QÄ nÅ `` nÄ `` ) , because he reconstructed the Ottoman legal system . He is known in the West as Suleiman the Magnificent and in the East , as the Lawgiver ( ; , alâ QÄ nÅ `` nÄ `` ) , for his complete reconstruction of the Ottoman legal system .