Its powers are extensive, including, in addition to ordinary legislative powers, control of financial affairs, foreign affairs, the power to declare war and approve treaties of peace, amnesties, electoral legislation for the provinces and municipalities, control of the electoral vote for president and vice-president, and designation of an acting president in case of the death or incapacity of these officers.
Ali Bey, the prince at this time, took advantage of Murad's absence in Europe to declare war against him; but the Ottoman ruler returning crushed him at the battle of Konia.
In Constantinople, early in 1603, there was, moreover, a serious rising of the spahis; and, finally, in September Shah Abbas of Persia took advantage of what is known in Turkish history as " the year of insurrections " to declare war and reconquer Tabriz.
Janissaries leisure to engage in plots against the sultan, and in order to occupy them and to remove them from the capital advantage was taken of the king of Poland having intervened in the affairs of Transylvania and the principalities to declare war against him.
In 1421 Filippo Maria Visconti, who had succeeded in reconquering most of Lombardy, seized Forli; this induced the Florentines to declare war on him, as they regarded his New war approach as a menace to their territory in spite of the with the opposition of the peace party led by Giovanni de' Visconti Medici.