Charles IV. and his four wives, Ladislas, Posthumus, George of Podebrad, Ferdinand I., Maximilian, as well as Rudolph himself, are buried here. Next to St. Vitus in importance is the Tyn Church in the market-place of the old town. It has great historical interest as having been the stronghold of the Hussite movement during its whole duration, as has been already mentioned. Waldhauser and Milic, the precursors of Hus, preached here, and here, also, Archbishop Rokycan delivered his fiery sermons. Of the many later preachers at this church, Gallus Cahera deserves notice. A personal friend of Luther, he strove to transform the ancient Utraquism of Bohemia into the Lutheranism that was then just beginning to dawn on the world. George of Podebrad proceeded to this church with the Bohemian nobles immediately after they had elected him as their King, and was joyfully received by Rokycan and the Utraquist clergy. The Tyn Church was of very modest origin. It was originally a chapel attached to the building known as the 'Tyn,' which German merchants who traded with Bohemia erected to exhibit their wares. The present building, begun in the fourteenth century, was finished in the fifteenth, during the reign of King George. It has suffered less from barbarous 'restorers' than most of the Prague churches. The fine façade built by Podebrad remains, but the statue of that King, which represented him as pointing upward with his sword to a chalice, of which he was so valiant a defender, was removed by the Jesuits in 1623 as being an 'Utraquist emblem.' They, at the same time, caused the two great bells of the Tyn Church that had been known as 'Hus' and 'Hieronymus' to be removed and recast; but when they had been refounded and the Jesuits had again placed them in their former position, it was found, to the great delight of those who still secretly sympathised with the ancient faith, that the sound was unaltered.[45] The interior of the church contains some paintings by Skreta, a handsome--though renovated--pulpit from which Rokycan is said to have preached, and the tomb of Tycho Brahe. One of the finest churches in Prague is that of St. Nicholas, on the Malostranské Námesti, built in the seventeenth century in the style of the Italian Renaissance. Of the many monasteries of Prague, I shall first mention the premonstratension Monastery of Mount Sion or Strahov. It is situated at the extremity of the Malá Strana, and the name of Strahov is derived from the Bohemian word 'straz,' guard, as a guard was formerly established here to secure the safety of travellers arriving at Prague by the Strahov gate.