On the 23rd March in 1801, a band of dismissed officers murdered Emperor Paul I at the palace of Saint Michael’s Castle.
Some months before it was executed, a conspiracy was orginazed by Counts Peter Ludwig von der Pahlen, Nikita Petrovich Panin, and Admiral de Ribas, with the alleged support of the British ambassador in Saint Petersburg, Charles Whitworth. (De Ribas died in December 1800, which caused a delay in the execution of the plot.)
The assassins included General Bennigsen, a Hanoverian in the Russian service, and General Yashvil, a Georgian. They charged into Paul’s bedroom, flushed with drink after dining together, and found the emperor hiding behind some drapes in the corner. The conspirators pulled him out, forced him to the table, and tried to compel him to sign his abdication. Paul offered some resistance, and Nikolay Zubov struck him with a sword, after which the assassins strangled and trampled him to death. (wikipedia)
(Please note this website prefers the term “long 18th century”, which means, events from the late 17th and the early 19th century are occasinally mentioned too)