Count Carl Gustaf Frölich (1637 – 14 March 1714) was a Swedish military officer of German descent, Riga Governor in 1700–1706 and infantry general.

The fortress was fired for two months with quantities of cannonballs, bombs, rock bumps, glowing bullets, grenades and mines.

The new King of Sweden Karl XII was appointed commander of the Helsinki Regiment in 1698 and, after the commencement of the Great Northern War on 12 March 1700, was promoted to Governor of Riga and lieutenant-general.

From 18 April 1702 he also served as Governor-General of Vidzeme, Sweden, and during the invasion of Russian troops in 1704, he was promoted to infantry general and commander of the Riga garrison.

On 17 January 1706 he was dismissed as Governor General before the siege of Riga (1709-1710) due to an unsuccessful attempt of monetary reform.