Racek Kobyla of Dvorce (also: Dvojic, Dvojitz, or Dwoygicz) was a Bohemian landowner, hetman of Wenceslas IV, and burgrave of Vyšehrad.
Not much is known about the early life of Racek. In 1403, he is first mentioned as being the overseer of silver mining at Stříbrná Skalice. In that year, the town was razed by Sigismund of Luxembourg and Racek initially retreated to Talmberk. Fleeing the continuing threat of Sigismund, Racek continued to Rataje nad Sázavou where he was received by Hanuš of Lipá.
In 1410, Racek was appointed burgrave of Vyšehrad by King Wenceslas. In 1412, he was permitted to build his castle, Komorní Hrádek, near modern day Chocerady. In 1415, Racek was mentioned as a patron of the Chocerady church.
In 1416, Racek was sent to Kutná Hora to collect taxes for the king. He was a known follower of the teachings of Jan Hus, who was proclaimed a heretic. Racek and 12 of his associates were assassinated in a tavern by a mob of miners fueled by religious fervor.
"They seized them in the inn where they were staying, cut their bodies into pieces and threw them out onto the street, where the mob vigorously stomped on their remains and then went in merry song to the home of the preacher to be praised for the act they had been encouraged to commit."
Upon his death, the castle was left to his widow Anna of Úlibic.
In popular culture
Racek features prominently in the video game Kingdom Come: Deliverance as Sir Radzig Kobyla.