What's the verb for throne? Here's the word you're looking for.
throne
(transitive, archaic) To place on a royal seat; to enthrone.
(transitive, archaic) To place in an elevated position; to give sovereignty or dominion to; to exalt.
(intransitive, archaic) To be in, or sit upon, a throne; to be placed as if upon a throne.
enthrone
(transitive) To put on the throne in a formal installation ceremony called enthronement, equivalent to (and often combined with) coronation and/or other ceremonies of investiture
(transitive, figuratively) To help a candidate to the succession of a monarchy (as a kingmaker does), or by extension in any other major organisation.