In the year 1526 king Louis died in the battle of Mohaez.
According to a matrimonial treaty, he was succeeded by his brother-in-law Ferdinand, archduke of Austria and brother of the emperor Charles V. This prince was received by the Bohemians with reluctance as their king, and only on the condition, insisted on by the Estates, that he should subscribe the compact of Basle, by which their religious liberties were secured to them. So long as Ferdinand was occupied in Hungary against the Turks, all went well in Bohemia; but when, in the war which followed the league of Smalkalde (1547), the Protestants of this country refused to fight against their brethren, a new and unremitted persecution began against all, who could in any way be comprised under the name of sectarians. The compact of Basle was strictly only in favour of the Utraquists or Calixtins; the Lutherans and Taborites, or, as they were then called, United Brethren, as also the Picardites and Grubenheimer, were considered as sects, and did not belong to the indulged.[29] Their churches were shut up; their preachers arrested; and all who did not prefer to exchange their religion for the Roman Catholic, were compelled to emigrate. The scene altered under Maximilian II, Ferdinand’s successor, a friend of the Reformation, and in every respect one of the most excellent princes who ever took upon himself the responsibility of directing the destinies of a nation; to use Schaffarik’s happy metaphor, the benefits of his administration fell on the field, which Ferdinand’s strength had ploughed, like a mild and fertilizing rain.