Agha Mohammad Khan Qajar was the shah of Iran in the 1790's. He was extremely cruel and violent, and his military victories came to nothing, at least for him personally. Here is an account of his death:
"...during Agha Mohammad's stay in Shusha, one night a quarrel arose between a Georgian servant named Sadegh Gorji and the valet Khodadad Esfahani. They raised their voices to such a pitch that the shah became angry and ordered both to be executed..."
https://en.wikipedia.org/wiki/Agha_Mohammad_Khan_Qajar