which King Rudolph had signed the Letter of Majesty. The defenders took immediate action, by inviting all Protestant members of the diet to meet at Prague. They assembled there on 21st of May 1618, and decided to proceed in full armour to the Hradcany palace to bring their complaints to the knowledge of the councillors of Matthias. On the following day, Thurn, Wenceslas of Ruppa, Ulrich of Kinsky, and other members of the more advanced party held a secret meeting, at which it was decided to put to death the most influential of Matthias's councillors. On the 23rd the representatives of the Protestants of Bohemia proceeded to the Hradcany. Violent accusations were brought forward, particularly against Martinic and Slavata, the king's most trusted councillors, who were accused of having advised him to oppose the wishes of the Bohemians. Finally these two councillors, together with Fabricius, secretary of the royal council, were thrown from the windows of the Hradcany into the moat below--an event known in history as the Defenestration of Prague. Both Martinic and Slavata were but little injured, and succeeded in escaping from Prague. The Bohemians immediately established a provisional government consisting of thirty "directors," ten of whom were chosen by each of the estates. They also proceeded to raise an armed force, the command of which was given to Count Thurn. Hostilities with Austria began in July, when an imperial force entered Bohemia. The troops of Matthias were, however, soon repulsed by the Bohemians, and in November Thurn's army entered Austria, but was soon obliged to retire to Bohemia because of the lateness of the season. War with the emperor Ferdinand.