Pietro IV Candiano [SEP] position held
Pietro IV Candiano
Pietro IV Candiano (died 976) was the twenty-second (traditional) or twentieth (historical) Doge of Venice from 959 to his death. He was the eldest son of Pietro III Candiano, with whom he co-reigned and whom he was elected to succeed. 
Rise.
By associating his son with him in the dogeship, Pietro III was trying to establish a hereditary monarchy in Venice. This incurred the wrath of the people, who, in a popular assembly, tried to
Candiano (887), Pietro II Candiano (932–939), Pietro III Candiano Canuto (white hair) or Sanuto (wise) (942–959), Pietro IV Candiano (959–976) and Vitale Candiano (978–979). The last Candiani (11th century) may have tried to take power in the Republic and keep it hereditarily in their family. Thus discredited, the name disappeared, and afterwards, only the Sanudo family exists. Note: Candiano derives from Candia, as Crete was called in Venetian, so, "Candiano