Ivan Grigoryevich Vyrodkov was a diak, Russian military engineer and inventor.
Ivan Vyrodkov's name was first mentioned in 1538. It is known that he participated in Ivan the Terrible's military campaigns against Kazan, during the Russo-Kazan Wars. In 1551, Ivan Vyrodkov was in charge of the construction of Sviyazhsk - a wooden fortress near Kazan that he would build in 28 days. This would serve as a strong point for the capture of the city by the Muscovite army.
He participated in the campaigns against Kazan, and in 1551 he constructed the wooden fortress of Sviiazhsk near Kazan in 28 days. The fortress served as the jumping-off point for the Russian capture of Kazan. In 1552, during the storming of Kazan, he directed fortification works and built a 13 m seige tower in one night. In 1557 he constructed a for-tress and harbor at the mouth of the Narva River and a for-tress in Galich. In 1563 Vyrodkov commanded a peasant levy during the Polotsk campaign. He was executed for unknown reasons.
Died circa 1563-64. Russian military engineer with the rank of secretary (d’iak).