Definition of "sultany"

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.

1639, Thomas Fuller, “Dargan and Sanar Two Egyptian Lords, Contending about the Sultanie, Sanar Calleth in the Turks to Help Him. Of the Danger of Mercenary Souldiers; yet How, Well Qualified, They may be Serviceable”, in The Historie of the Holy Warre, Cambridge, Cambridgeshire: […] Thomas Buck, one of the printers to the Universitie of Cambridge [and sold by John Williams, London], book II, page 89