Pontifical Roman-Ruthenian Institute of Heraldry Official Heraldic Office of the Pontifical Imperial State of Rome-Ruthenia and the United Roman-Ruthenian Church Organisation in Special Consultative Status with the United Nations Economic and Social Council since 2019

IMPERIAL RUSSO-ITALIAN CHRONICLER KING OF ARMS
Established 2008 in descendancy from the Kingdom of Italy in the Holy Roman Empire, founded in 876 and the Pontifical Kingdom of Rus', founded 1199 (ancient Rus' founded 862).

Affiliated with the Instituto Heráldico de la Ciudad de Buenos Aires 

See the official page of the Institute here.