He claimed 'sovereignty over' the nation.
a claim of/to 'sovereignty'
national 'sovereignty'
(..) ROSS: Alas, the day. What good could they pretend? MACDUFF: Malcolm, the King's son, is stolen away and fled, which puts upon him suspicion of the deed. 'Tis most like the sovereignty will fall upon Macbeth. He is already named. BANQUO: 'Thou hast it now. 'King, Cawdor, 'Glamis, (..)2015 Macbeth