Under Pietro II Candiano, Istrian cities signed an act of devotion to the Venetian rule. His father (Pietro Candiano I) attempted to attack and destroy Marania or Pagania or Narentines and secure safe passage to Venetian fleets and treaders near Croatian Dalmatia . On 887 September 18th, Candiano was captured by the Admiral of the Maranium Navy and killed. He was the first and only Duke of Venice to lose his life in an attempt to secure the Dalmatian Coast to Venice. The autocratic, philo-Imperial Candiano dynasty was overthrown by a revolt in 972, and the populace elected doge Pietro I Orseolo; however, his conciliating policy was ineffective, and he resigned in favour of Vitale Candiano.