The Senate was headed by the Governor-General of Finland. The members of the Senate had to be Finnish citizens. The Senate was divided into the economic division and the judicial division. In 1822 both divisions were given a Finnish vice-chairman. From 1858 and onwards the members of the senate were formally known as "senators." After the February Revolution in Russia the Vice Chairman of the Economic Division became the Chairman of the Senate. Due to the Civil War in 1918 the Senate was relocated to the town of Vaasa from January 29 to May 3.