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
Gulf of Zula Gulf of Zula The Gulf of Zula, also known as Annesley Bay, Baia di Arafali or Zula Bahir Selat’ē, is a body of water on the Eritrean coastline on the Red Sea. The Gulf lies to the east of Massawa, near the midpoint of the Eritrean coast. It is located between the Foro Subregion and the Buri Peninsula of the Ghela'elo Subregion, both in the country's Northern Red Sea region. On the west side of the gulf are two large mountains, Jebel Gedem and Mount Arbalu . Between the two, the Aligede River flows, with the village of Zula on