Saint St. Wenceslaus!

Wenceslaus I (Czech: Václav [ˈvaːtslaf] (listen); c. 907 – 28 September 935 or 929), Wenceslas I or Václav the Good was the Duke (kníže) of Bohemia from 921 until his death probably either in 935 or 929 (although 935 is favored today). His younger brother, Boleslaus the Cruel, is commonly considered the perpetrator of Wenceslaus' assassination by the Czech public and the Roman Catholic Church. However, there is a debate on whether his death was an accident or a murder. According to some historians (e. g. Dušan Třeštík or Martin Wihoda) it was the result of a quarrel between the two brothers or their parties (probably after a night of drinking). Boleslaus' men then killed Wenceslaus in the subsequent chaotic fight.
His martyrdom and the popularity of several biographies gave rise to a reputation for heroic virtue that resulted in his elevation to sainthood. He was posthumously declared to be a king and came to be seen as the patron saint of the Czech state. He is the subject of the well-known "Good King Wenceslas", a carol for Saint Stephen's Day.
Wenceslaus was the son of Vratislaus I, Duke of Bohemia from the Přemyslid dynasty. His grandfather, Bořivoj I of Bohemia, was converted to Christianity by Cyril and Methodius. His mother, Drahomíra, was the daughter of a pagan tribal chief of the Havelli, but was baptized at the time of her marriage. His paternal grandmother, Ludmila of Bohemia, saw to it that he was educated in the Old Slavonic language and, at an early age, Wenceslaus was sent to the college at Budeč.
In 921, when Wenceslaus was about thirteen, his father died and his grandmother became regent. Jealous of the influence that Ludmila wielded over Wenceslaus, Drahomíra arranged to have her killed. Ludmila was at Tetín Castle near Beroun when assassins murdered her on 15 September 921. She is said to have been strangled by them with her veil. She was at first buried in the church of St. Michael at Tetín, but her remains were later removed, probably by Wenceslaus, to the church of St. George in Prague, which had been built by his father.
Drahomíra then assumed the role of regent and immediately initiated measures against Christians. When Wenceslaus was 18, those Christian nobles who remained rebelled against Drahomira. The uprising was successful, and Drahomira was sent into exile to Budeč.
With the support of the nobles, Wenceslaus took control of the government. He "...reined in the dependent dukes who had become restive under the regency and used Christianity to strengthen his state."
After the fall of Great Moravia, the rulers of the Bohemian Duchy had to deal both with continuous raids by the Magyars and the forces of the Saxon and East Frankish king Henry the Fowler, who had started several eastern campaigns into the adjacent lands of the Polabian Slavs, homeland of Wenceslaus's mother. To withstand Saxon overlordship, Wenceslaus's father Vratislaus had forged an alliance with the Bavarian duke Arnulf, a fierce opponent of King Henry at that time. The alliance became worthless, however, when Arnulf and Henry reconciled at Regensburg in 921.
Early in 929, the joint forces of Duke Arnulf of Bavaria and King Henry I the Fowler reached Prague in a sudden attack that forced Wenceslaus to resume the payment of a tribute first imposed by the East Frankish king Arnulf of Carinthia in 895. Henry had been forced to pay a huge tribute to the Magyars in 926 and needed the Bohemian tribute, which Wenceslaus probably refused to pay after the reconciliation between Arnulf and Henry. Another possible reason for the attack was the formation of the anti-Saxon alliance between Bohemia, the Polabian Slavs, and the Magyars.
Wenceslaus introduced German priests into his realm and favoured the Latin rite instead of the old Slavic, which had gone into disuse in many places for want of priests. He also founded a rotunda consecrated to St. Vitus at Prague Castle in Prague that was the basis of present-day St. Vitus Cathedral.