viceroyship

noun

1. (countable, uncountable)The office or term of a viceroy.

   “Whileſt the Turks thus lorded it in Syria and the leſſer Aſia, the Saracen Caliph commanded in Egypt; under whom, two great Lords, Dargan and Sanar, fell out about the Sultanie or Vice-royſhip of that land.”