Keywords: Kovno and Courland Governorates.jpg Kovno Governorate and Courland Governorate of Russian Empire from Brockhaus and Efron Encyclopedia Энциклопедия Б� окгауза Ф А и Еф� она И А С Пете� бу� гъ 1890 �1907 unknown-anonymous before 1907 PD-Brockhaus Efron Maps PD-RusEmpire Maps of Kovno Governorate Maps of Courland Governorate |