In November 1580 Ivan in a fit of ungovernable fury at some contradiction or reproach, struck his eldest surviving son Ivan, a prince of rare promise, whom he passionately loved, a blow which proved fatal.
Among causes for absolute divorce are adultery, desertion for one year, habitual drunkenness for one year, cruelty, ungovernable temper, physical incapacity at time of marriage, and the joining by either party of any religious sect which regards marriage as unlawful.
Soon after the great earthquake of 1509, which laid Constantinople in ruins, Selim, the ungovernable pasha of Trebizond, whose vigorous rule in Asia had given Europe an earnest of his future career as sultan, appeared before Adrianople, where Bayezid had sought refuge.
They were a fierce and illdisciplined force, individually brave and cruel in war, and almost ungovernable in peace.
His prestige and his good qualities, carefully fostered by Seneca, made him popular, while his childish vanity, ungovernable selfishness and savage temper were as yet unsuspected.