. "Tsar Alexei Mikhailovich"@en . . . "Vassal"@en . . "Male"@en . "Muscovite Tsardom"@en . "Prince Semyon Prozorovsky"@en . . "Semyon Prozorovsky"@en . "250"^^ . "#add451"@en . "Prince Semyon Prozorovsky is initially a vassal of the Muscovite Tsardom. He begins the game as the lord of Tula. This article is a . You can help out by expanding it."@en . "Prince Semyon Prozorovsky is initially a vassal of the Muscovite Tsardom. He begins the game as the lord of Tula. This article is a . You can help out by expanding it."@en .