dogeship
/ˈdəʊ(d)ʒʃɪp/noun
The office or position of a doge; the period during which such office is exercised, the government of a doge. Also (with possessive) as a title.
Origin
Mid 17th century; earliest use found in James Howell (?1594–1666), historian and political writer. From doge + -ship.