Under what rulers did the Ottoman Empire reach its highest power?

The Ottoman Empire was created through wars of conquest. Sultan Osman is the founder of the state of the Turks. The policy of conquest was continued by his son, grandchildren and great-grandchildren. Sultan Mehmet conquered Constantinople in 1453. The conquests continued for over one hundred and fifty years. The empire reached its greatest power under Selim the First and Suleiman the Magnificent. Ottoman rule spread throughout the Mediterranean, Asia Minor, the Caucasus and northern Africa. The Balkan countries and most of Europe were conquered.