According to legend, one Count Radislas rose in rebellion and marched against King Wenceslas.
The latter sent a deputation with offers of peace, but Radislas viewed this as a sign of cowardice.
The two armies were drawn up opposite each other in battle array, when Wenceslas, to avoid shedding innocent blood, challenged Radislas to single combat.
As Radislas advanced toward the king, he saw by Wenceslas' side two angels, who cried: "Stand off!"
Thunderstruck, Radislas repented his rebellion, threw himself from his horse  at Wenceslas's feet, and asked for pardon.
Wenceslas raised him and kindly received him again into favor.

A second enduring legend claims an army of knights sleeps under Blaník, a mountain in the Czech Republic.
They will awake and, under the command of Wenceslaus, bring aid to the Czech people in their ultimate danger.
There is a similar legend in Prague which says that when the Motherland is in danger or in its darkest times and close to ruin, the equestrian statue of King Wenceslaus in Wenceslaus Square will come to life, raise the army sleeping in Blaník, and upon crossing the Charles Bridge his horse will stumble and trip over a stone, revealing the legendary sword of Bruncvík.
With this sword, King Wenceslaus will slay all the enemies of the Czechs, bringing peace and prosperity to the land.
Ogden Nash wrote a comic epic poem—"The Christmas that Almost Wasn't", loosely based on the same legend—in which a boy awakens Wenceslaus and his knights to save a kingdom from usurpers who have outlawed Christmas.
According to legend, one Count Radislas rose in rebellion and marched against King Wenceslas. The latter sent a deputation with offers of peace, but Radislas viewed this as a sign of cowardice. The two armies were drawn up opposite each other in battle array, when Wenceslas, to avoid shedding innocent blood, challenged Radislas to single combat. As Radislas advanced toward the king, he saw by Wenceslas' side two angels, who cried: "Stand off!" Thunderstruck, Radislas repented his rebellion, threw himself from his horse  at Wenceslas's feet, and asked for pardon. Wenceslas raised him and kindly received him again into favor.
A second enduring legend claims an army of knights sleeps under Blaník, a mountain in the Czech Republic. They will awake and, under the command of Wenceslaus, bring aid to the Czech people in their ultimate danger. There is a similar legend in Prague which says that when the Motherland is in danger or in its darkest times and close to ruin, the equestrian statue of King Wenceslaus in Wenceslaus Square will come to life, raise the army sleeping in Blaník, and upon crossing the Charles Bridge his horse will stumble and trip over a stone, revealing the legendary sword of Bruncvík. With this sword, King Wenceslaus will slay all the enemies of the Czechs, bringing peace and prosperity to the land. Ogden Nash wrote a comic epic poem—"The Christmas that Almost Wasn't", loosely based on the same legend—in which a boy awakens Wenceslaus and his knights to save a kingdom from usurpers who have outlawed Christmas.
Wenceslaus I, Duke of Bohemia