Of Spahis (Algerian natives); (c) 40 regiments of artillery, comprising 445 field batteries,.
The minority of the sultan gave full play to the anarchic elements in the state; the soldiery, spahis and janissaries, conscious of their power and reckless through impunity, rose in revolt whenever the whim seized them, demanding privileges and the heads of those who displeased them, not sparing even the sultan's favourites.
In 1631 the spahis of Asia Minor rose in revolt, in protest against the deposition of the grand vizier Khosrev; their representatives crowded to Constantinople, stoned the new grand vizier, Hafiz, in the court of the palace, and pursued the sultan himself into the inner apartments, clamouring for seventeen heads of his advisers and favourites, on penalty of his own deposition.
Khosrev was executed in Asia Minor by his orders; a plot of the spahis to depose him was frustrated by the loyalty of Koes Mahommed, aga of the janissaries, and of the spahi Rum Mahommed (Mahommed the Greek); and on the 29th of May 1632, by a successful personal appeal to the loyalty of the janissaries, Murad crushed the rebels, whom he surrounded in the Hippodrome.
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.