Nearly all of the eastern and southern portions of Hungary were already in the hands of the Turks. Maximilian held a few important towns and strong fortresses on the western frontier. Not feeling strong enough to attempt to repel the Turks from the portion they already held, he strengthened his garrisons, and raising an army of eighty thousand men, of which he assumed the command, he entered Hungary and marched down the Danube about sixty miles to Raab, to await the foe and act on the defensive. Solyman rendezvoused an immense army at Belgrade, and commenced his march up the Danube.

"Old as I am," said he to his troops, "I am determined to chastise the house of Austria, or to perish in the attempt beneath the walls of Vienna."

It was beautiful spring weather, and the swelling buds and hourly increasing verdure, decorated the fields with loveliness. For several days the Turks marched along the right bank of the Danube, through green fields, and beneath a sunny sky, encountering no foe. War seemed but as the pastime of a festive day, as gay banners floated in the breeze, groups of horsemen, gorgeously caparisoned, pranced along, and the turbaned multitude, in brilliant uniform, with jokes, and laughter and songs, leisurely ascended the majestic stream. A fleet of boats filled the whole body of the river, impelled by sails when the wind favored, or, when the winds were adverse, driven by the strong arms of the rowers against the gentle tide. Each night the white tents were spread, and a city for a hundred thousand inhabitants rose as by magic, with its grassy streets, its squares, its busy population, its music, its splendor, blazing in all the regalia of war. As by magic the city rose in the rays of the declining sun. As by magic it disappeared in the early dawn of the morning, and the mighty hosts moved on.

A few days thus passed, when Solyman approached the fortified town of Zigeth, near the confluence of the Drave and the Danube. Nicholas, Count of Zrini, was intrusted with the defense of this place, and he fulfilled his trust with heroism and valor which has immortalized both his name and the fortress which he defended. Zrini had a garrison of but three thousand men. An army of nearly a hundred thousand were marching upon him. Zrini collected his troops, and took a solemn oath, in the presence of all, that, true to God, to his Christian faith, and his country, he never would surrender the town to the Turks, but with his life. He then required each soldier individually to take the same oath to his captain. All the captains then, in the presence of the assembled troops, took the same oath to him.

The Turks soon arrived and commenced an unceasing bombardment day and night. The little garrison vigorously responded. The besieged made frequent sallies, spiking the guns of the besiegers, and again retiring behind their works. But their overpowering foes advanced, inch by inch, till they got possession of what was called the "old city." The besieged retiring to the "new city," resumed the defense with unabated ardor. The storm of war raged incessantly for many days, and the new city was reduced to a smoldering heap of fire and ashes. The Turks, with incredible labor, raised immense mounds of earth and stone, on the summits of which they planted their batteries, where they could throw their shot, with unobstructed aim, into every part of the city. Roads were constructed across the marsh, and the swarming multitudes, in defiance of all the efforts of the heroic little garrison, filled up the ditch, and were just on the rush to take the place by a general assault, when Zrini abandoned the new city to flames, and threw himself into the citadel. His force was now reduced to about a thousand men. Day after day the storm of war blazed with demoniac fury around the citadel. Mines were dug, and, as by volcanic explosions, bastions, with men and guns, were blown high into the air. The indomitable Hungarians made many sallies, cutting down the gunners and spiking the guns, but they were always driven back with heavy loss. Repeated demands for capitulation were sent in and as repeatedly rejected. For a week seven assaults were made daily upon the citadel by the Turks, but they were always repulsed. At length the outer citadel was entirely demolished. Then the heroic band retired to the inner works. They were now without ammunition or provisions, and the Turks, exasperated by such a defense, were almost gnashing their teeth with rage. The old sultan, Solyman, actually died from the intensity of his vexation and wrath. The death of the sultan was concealed from the Turkish troops, and a general assault was arranged upon the inner works. The hour had now come when they must surrender or die, for the citadel was all battered into a pile of smoldering ruins, and there were no ramparts capable of checking the progress of the foe. Zrini assembled his little band, now counting but six hundred, and said,

"Remember your oath. We must die in the flames, or perish with hunger, or go forth to meet the foe. Let us die like men. Follow me, and do as I do."

They made a simultaneous rush from their defenses into the thickest of the enemy. For a few moments there was a scene of wildest uproar and confusion, and the brave defenders were all silent in death. The Turks with shouts of triumph now rushed into the citadel. But Zrini had fired trains leading to the subterranean vaults of powder, and when the ruins were covered with the conquerors, a sullen roar ran beneath the ground and the whole citadel, men, horses, rocks and artillery were thrown into the air, and fell a commingled mass of ruin, fire and blood. A more heroic defense history has not recorded. Twenty thousand Turks perished in this siege. The body of Zrini was found in the midst of the mangled dead. His head was cut off and, affixed to a pole, was raised as a trophy before the tent of the deceased sultan.

The death of Solyman, and the delay which this desperate siege had caused, embarrassed all the plans of the invaders, and they resolved upon a retreat. The troops were consequently withdrawn from Hungary, and returned to Constantinople.

Maximilian, behind his intrenchments at Raab, did not dare to march to the succor of the beleaguered garrison, for overpowering numbers would immediately have destroyed him had he appeared in the open field. But upon the withdrawal of the Turks he disbanded his army, after having replenished his garrisons, and returned to Vienna. Selim succeeded Solyman, and Maximilian sent an embassy to Constantinople to offer terms of peace. At the same time, to add weight to his negotiations, he collected a large army, and made the most vigorous preparations for the prosecution of the war.

Selim, just commencing his reign, anxious to consolidate his power, and embarrassed by insurrection in his own realms, was glad to conclude an armistice on terms highly favorable to Maximilian. John Sigismond, who had been crowned by the Turks, as their tributary King of Hungary, was to retain Transylvania. The Turks were to hold the country generally between Transylvania and the river Teiss, while Ferdinand was to have the remainder, extending many hundred miles from the Teiss to Austria. The Prince of Transylvania was compelled, though very reluctantly, to assent to this treaty. He engaged not to assume the title of King of Hungary, except in correspondence with the Turks. The emperor promised him one of his nieces in marriage, and in return it was agreed that should John Sigismond die without male issue, Transylvania should revert to the crown of Hungary.