The Lord High Chancellor, literally Chancellor of the Realm, was a prominent and influential office in Sweden, from 1538 until 1799, excluding periods when the office was out of use. The office holder was a member of the Privy Council. From 1634, the Lord High Chancellor was one of five Great Officers of the Realm, who were the most prominent members of the Privy Council and headed a governmental branch each—the Lord High Chancellor headed the Privy Council. In 1792, more than a century after the office's abolition in 1680, it was revived, but was then finally abolished again seven years later in 1799.

Riksdag of the Estates was the name used for the Estates of Sweden when they were assembled. Until its dissolution in 1866, the institution was the highest authority in Sweden next to the King. It was a Diet made up of the Four Estates, which historically were the lines of division in Swedish society:Nobility Clergy Burghers Peasants