Pietro Ziani (died 13 March 1230) was the

Doge of Venice The Doge of Venice ( ) – in Italian, was the doge or highest role of authority within the Republic of Venice (697–1797). The word derives from the Latin , meaning 'leader', and Venetian Italian dialect for 'duke', highest official of the ...

from 15 August 1205 to 1229, succeeding Enrico Dandolo. He was the son of Doge Sebastian Ziani of the very rich noble family. He was married to Maria Baseggio and Constance of Sicily. In his youth a sailor, he commanded a flotilla escorting the emperor

Frederick Barbarossa Frederick Barbarossa (December 1122 – 10 June 1190), also known as Frederick I (; ), was the Holy Roman Emperor from 1155 until his death in 1190. He was elected King of Germany in Frankfurt on 4 March 1152 and crowned in Aachen on 9 March 115 ...

in 1177, took also part in the

Fourth Crusade The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating the powerful Egyptian Ayyubid S ...

and sacking of Constantinople. After his election, Ziani is said to consider the transfer of the capital of the Republic to Constantinople, but eventually the Council decided against it. Instead, he organized the Venetian acquisitions in the territory of the

Latin Empire The Latin Empire, also referred to as the Latin Empire of Constantinople, was a feudal Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire. The Latin Empire was intended to replace the Byzantin ...

Crete Crete ( ; , Modern Greek, Modern: , Ancient Greek, Ancient: ) is the largest and most populous of the Greek islands, the List of islands by area, 88th largest island in the world and the List of islands in the Mediterranean#By area, fifth la ...

Corfu Corfu ( , ) or Kerkyra (, ) is a Greece, Greek island in the Ionian Sea, of the Ionian Islands; including its Greek islands, small satellite islands, it forms the margin of Greece's northwestern frontier. The island is part of the Corfu (regio ...

, other islands and the substantial part of Constantinople itself, demanding an oath from the Venetian colony in the city. Ziani established also commercial ties with the post-Byzantine states, signing in 1210 a treaty with the

despotate of Epirus The Despotate of Epirus () was one of the Greek Rump state, successor states of the Byzantine Empire established in the aftermath of the Fourth Crusade in 1204 by a branch of the Angelos dynasty. It claimed to be the legitimate successor of the ...

under

Michael I Komnenos Doukas Michael I Komnenos Doukas, Latinized as Comnenus Ducas (), and in modern sources often recorded as Michael I Angelos, a name he never used, was the founder and first ruler of the Despotate of Epirus from until his assassination in 1214/15. Bor ...

. According to the '' Cronaca Altinate'', he strove to maintain peace with

Padua Padua ( ) is a city and ''comune'' (municipality) in Veneto, northern Italy, and the capital of the province of Padua. The city lies on the banks of the river Bacchiglione, west of Venice and southeast of Vicenza, and has a population of 20 ...

after an incident at a festival in

Treviso Treviso ( ; ; ) is a city and (municipality) in the Veneto region of northern Italy. It is the capital of the province of Treviso and the municipality has 87.322 inhabitants (as of December 2024). Some 3,000 live within the Venetian wall ...

so that Venice could concentrate on its new Greek territories. He was forced to fend off a Paduan invasion in the War of the Castle of Love (1215). Frederick Hamilton Jackson
''The Shores of the Adriatic: The Italian Side – An Architectural and Archaeological Pilgrimage''
(London: John Murray, 1906), 309–313. Ziani abdicated in February 1229. He was succeeded by his brother-in-law, Jacopo Tiepolo, but Ziani refused to meet him and died a year later. He is buried in the church of

San Giorgio Maggiore San Giorgio Maggiore () is one of the islands of Venice, northern Italy, lying east of the Giudecca and south of the main island group. The island, or more specifically its Palladian church, is an important landmark. It has been much painted, ...

References

13th-century Doges of Venice 1230 deaths Year of birth unknown 12th-century Venetian people Christians of the Fourth Crusade {{Italy-noble-stub