When sweden lost northern latvia to russia in 1721 , and the duchy of courland replaced its polish ties with russian control in 1795 , russia finally gained its window to the west 1721年瑞典将北部拉脱维亚输给了俄罗斯， 1795年库尔兰（ courland ）公国丢弃了与波兰的联系，转而接受俄罗斯的控制，俄罗斯也最终获取了其“西部之窗” 。
