The visitor to Constantinople remembers Mohammed most of all by the magnificent mosque which towers over the city and is seen in such striking effects of light from the heights of Pera. With the name of his successor is associated a mosque as beautiful and as famous. Bayezid succeeded his father in spite of a plot of the Grand Vizier to give the throne to his younger brother Djem, whose romantic adventures fill so large a space in the French and papal diplomacy of the end of the fifteenth century. His reign (1481-1512) was marked like his father's by great victories, and the once famous Turkish fleet owes its origin to him. In him first appears the contemplative lethargic character which was to become marked in some of the later Sultans. Eastern writers called him a philosopher; and when he had ceased even to pretend to be a warrior his troops insisted on his giving up the throne to his son Selim. Three weeks after his resignation he died. Rarely has he who has once been Sultan lived long in retirement. Selim, with ferocious zest, carried out, though he did not inaugurate, another custom of the Ottoman monarchy. He swept away all possible claimants to his throne, strangling his two brothers and five of his nephews. He followed the victorious course of his predecessors; he fought in Persia, he seized Egypt and occupied Jerusalem, and Mecca, the centre of Mohammedan reverence, passed under his power. Savage and relentless as he was--it became a proverb of hatred, "Would that thou wast the Vizier of Sultan Selim"--he was yet, like so many of his race, a poet, and the friend and patron of learned men. He died near Adrianople on the 22nd of September 1520, and left the throne to his son Suleiman, one of the greatest of the Sultans. Suleiman began with mercy. Justice and benevolence, he declared that he took for the principles of his government. He freed prisoners, he declared that he would rule in accordance with the precepts of the Koran. From the first his reign was a succession of victories. In 1521 Belgrade surrendered; in 1522 he conquered the isle of Rhodes, so long the gallantly defended outpost of Christendom in the Mediterranean. For a time after these great successes he turned to pleasure, but threatened insubordination among the Janissaries awoke the barbarity which was never far below the surface in the great Turkish Sovereigns, and Mustafa the aga with several of the officers paid for their independence with their lives.