History of the Republic of Venice of the Sea" ceremony was established in this period. Orseolo died in 1008. Venice's control over the Adriatic was strengthened by an expedition by Pietro's son Ottone in 1017, by which time Venice had assumed a key role in balancing power between the Byzantine and Holy Roman Empires. During the long Investiture Controversy, an 11th-century dispute between Henry IV, Holy Roman Emperor and Pope Gregory VII over who would control appointments of church officials, Venice remained neutral, and this caused some attrition of support from the Popes. Doge Domenico Selvo intervened in the war between the Normans of Apulia and
Chief Directorate of the Northern Sea Route Chief Directorate of the Northern Sea Route The Chief Directorate of the Northern Sea Route (), also known as Glavsevmorput or GUSMP (), was a Soviet government organization in charge of the maritime Northern Sea Route, established in January 1932 and dissolved in 1964. The organization traces its roots to AO Komseverput () or KSMP, a shipping company established by the Kolchak government in 1919 and subsequently nationalized by the Bolsheviks. In May 1931 AO Komseverput was reorganized into VO Glavkomseverput; the organization employed 35,000 men scattered all over Arctic, as well as a sizable staff in Moscow and in