Their librarian was Wenceslas Brezan, who has left a valuable work on the annals of the Rosenberg family.
In 1356 Louvain was the scene of the famous Joyeuse Entree of Wenceslas which represented the principal charter of Brabant.
In 1356 Duke Wenceslas confirmed this charter and also the Golden Bull of the emperor Charles IV.
In 1357 Wenceslas, ordered a new wall embracing a greater area than the earlier one to be constructed round Brussels, and this was practically intact until after the Belgian revolution in 1830-1831.
The war of succession lasted till 1379, and ended in William's favour, the emperor Wenceslas (Wenzel) recognizing him as duke four years later.
Wenceslas, surnamed the Holy, who in 935 was murdered by his brother Boleslav, and who was afterwards canonized by the Church of Rome.
As Wenceslas had been an ally of Germany, his murder resulted in a war with that country, in which, as far as we can judge by the scanty records of the time, Boleslav, the brother and successor of Wenceslas, was on the whole successful.
Ottakar's son, Wenceslas II., was only seven years of age at the death of his father, and Otto of Brandenburg, a nephew of Ottakar, for a time governed Bohemia as guardian of _ the young sovereign.
The country was at last pacified through the intervention of Rudolph of Habsburg, and at the age of twelve Wenceslas became nominal ruler of the country.
Wenceslas, though only nineteen years of age, henceforth governed Bohemia himself, and his short reign was a period of great happiness for the country.
Poland also accepted the rule of Wenceslas and the Hungarian crown was offered to him.
Towards the end of his reign Wenceslas became involved in war with Albert, archduke of Austria, afterwards king of the Romans.
While preparing to invade Austria Wenceslas died suddenly (1305).
His son and successor, Wenceslas III., was then only sixteen years of age, and he only ruled over Bohemia for one year.
Though the Habsburg princes at this period already claimed a hereditary right to the Bohemian throne, the Bohemians determined to maintain their right of electing their sovereign, and they chose Henry, duke of Carinthia, who had married a daughter of King Wenceslas II.
Though King John, by his marriage to the princess Elizabeth, a daughter of Wenceslas II., became more closely connected with Bohemia, he does not appear to have felt much interest in that country.
Charles was succeeded by his son Wenceslas, who was then seventeen years of age.
During the earlier part of the reign of Wenceslas a continual struggle took place between the king and the powerful Bohemian nobles, who indeed twice imprisoned their sovereign.
Wenceslas also became involved in a dispute with the archbishop, which resulted in the death of the famous John of Nepomuk.
The later part of the reign of Wenceslas is a record of incipient religious conflict.
Wenceslas on the occasion of these disputes displayed the weakness and irresolution that always characterized him, but Queen Sophia openly favoured the cause of Huss, who for some time was her confessor.
The members of the confederacy attempted, though unsuccessfully, to induce King Wenceslas to become their leader.
After the closing of the council in 1418, Sigismund, who - Wenceslas being childless - was heir to the Bohemian throne, sent a letter to his brother, which was practically a manifesto addressed to the Bohemian people.
Wenceslas maintained the vacillating attitude that was characteristic of his whole reign, though Queen Sophia still extended her protection to the reformers.
Intimidated by his brother, Wenceslas now attempted to stem the current of religious enthusiasm.
Wenceslas decreed that they should be reinstated, and it was only after some hesitation that he even permitted that religious services according to the Utraquist doctrine should be held in three of the churches of Prague.
Their appeal met with a response in a great part of Italy, France, Navarre, Portugal and England, and in Germany in the states subject to Wenceslas king of the Romans, the electors of Cologne and Mainz, the margrave of Brandenburg, &c. For a time the number of the fathers exceeded five hundred.
On receiving the news of these riots King Wenceslas was immediately seized by an attack of apoplexy; a second fit on the 16th of August ended his life.
At a meeting of the estates in 1517 known as the diet of St Wenceslas - as the members first assembled on the 28th of September, the anniversary of that saint - they came to terms and settled the questions which had been the causes of discord.
The two last kings had mainly resided in Hungary, and in spite of the temporary agreement obtained at the diet of St Wenceslas, the Bohemians had not succeeded in establishing a strong indigenous government which might have taken the place of the absentee monarchs.
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.
Of these far the best-known is Wenceslas Hajek of Libocan.
One of the historians of the brotherhood, Wenceslas Bfezan, wrote a History of the House of Rosenberg, of which only the biographies of William and Peter of Rosenberg have been preserved.
Wenceslas Tomek (1818-1905) left many historical works, of which his Dejepis miesta Prahy (history of the town of Prague) is the most important.