Georgios Mavromichalis was son of the great Maniot primate Petros Mavromichalis. Petros Mavromichalis (1765-1848) (in Greek Πέτρος Μαυρομιχάλης) also known as Petrobey (Πετρομπέης), was the leader of the Maniot people during the first half of...

When his father was captured, placed in prison and charged with high treason on the order of Governor of Greece John Capodistria , Georgios and his uncle Kostantinos Mavromichalis decided to take revenge. On 27 September (Julian calendar)/October 9 (Gregorian calendar) 1831, the duo decided to assassinate the Governor as he entered St Spyridon church in Nauplio. As his uncle stabbed Capodistrias, Georgios stabbed the president through the heart. As they were escaping Konstantinos was shot. An angry mob grabbed Georgios and beat him to death as his grieving father watched. Under English, and later British law, high treason is the crime of disloyalty to the Sovereign. ... Ioannis Kapodistrias (1776-1831). ... This article needs to be cleaned up to conform to a higher standard of quality. ... September 27 is the 270th day of the year (271st in leap years) in the Gregorian calendar. ... The Julian calendar was introduced in 46 BC by Julius Caesar and came into force in 45 BC (709 ab urbe condita). ... October 9 is the 282nd day of the year (283rd in leap years) in the Gregorian calendar. ... The Gregorian calendar is the most widely used calendar in the world. ... Leopold I 1831 (MDCCCXXXI) was a common year starting on Saturday (see link for calendar). ... Náfplio (Ναύπλιον) is a town on the Peloponnese in Greece. ...