Jarlsberg was a former countship that forms a part of today's Vestfold county in Norway. . The former countships of Jarlsberg and Larvik were merged into a county in 1821. Jarlsberg and Larvik's County (Jarlsberg og Larviks amt) were renamed Vestfold in 1919. Created in 1673 as Griffenfeldt Countship (Griffenfeld grevskap), it was after a few years known as Tønsberg Countship (Tønsberg grevskap) until 1684, when the name became Jarlsberg. Dating to 1681, the countship was associated with members of the Dano-Norwegian noble family, Wedel-Jarlsberg.
https://en.wikipedia.org/wiki/Jarlsberg
Jarlsberg was a former countship that forms a part of today's Vestfold county in Norway. . The former countships of Jarlsberg and Larvik were merged into a county in 1821. Jarlsberg and Larvik's County (Jarlsberg og Larviks amt) were renamed Vestfold in 1919. Created in 1673 as Griffenfeldt Countship (Griffenfeld grevskap), it was after a few years known as Tønsberg Countship (Tønsberg grevskap) until 1684, when the name became Jarlsberg. Dating to 1681, the countship was associated with members of the Dano-Norwegian noble family, Wedel-Jarlsberg.
