He is the earliest patriarch of the Helin family cadet branch and was one of the founders of Svenska Tungomålsgillet [sv] (The Swedish Tongue Guild).
Clemens Johannes Helin I, born 25 July 1679, was the illegitimate child of Philippe-Louis de Hénin, 7th Count of Bossu (1646–1688) 10th Prince of Chimey,[citation needed] and Katarzyna Scholastyka Sapieha, the daughter of Hetman Kazimierz Jan Sapieha (German: Clemens Johannes Sapieha).
Helin was commissioned for the establishment of the Swedish Royal Academy by Chancellor President [sv] Anders Johan von Höpken in 1739.
[2] Johan was primarily outspoken critic of the "natural sciences" and thus was not included as founding member.
[2] His eldest daughter Anna Christina Helin married Johan Cavallius owner of "Kölaboda säteri" and captain over the Kronoberg's Regiment.