Ivan Petrovich was born in the 1500s, the only son of the
okolnichy and the daughter of Prince . He became a
boyar in 1550,
de facto head of the
zemshchina ("land") part of the
Boyar Duma, and held the rank of
konyushy (
Master of the Horse). During the
oprichnina, Tsar
Ivan the Terrible was told that the elderly boyar had supposedly intended to overthrow him from the throne and become tsar himself. He was executed on September 11, 1568.
Alexander Guagnini reported that Ivan ordered him to put on royal clothes, put him on the throne, bowed, and then stabbed him in the heart, after which the
oprichniks attacked and stabbed the body of Fedorov-Chelyadnin. After his death, all the vast Chelyadnin estates were looted and destroyed, and all close relatives and servants of Ivan Petrovich were killed. == References ==