East Karelia (,
Karelian:
Idä-Karjala), also rendered as
Eastern Karelia or
Russian Karelia, is a name for the part of
Karelia that since the
Treaty of Stolbova in 1617 has remained
Christian Orthodox under
Russian supremacy. It is separated from the western part of Karelia, called
Finnish Karelia or historically
Swedish Karelia (before 1808). Most of East Karelia is now part of the
Republic of Karelia within the Russian Federation. It consists mainly of old historical regions of Viena and
Aunus.