The High Sheriff of Belfast Councillor John Hussey will don ceremonial robes for a re-reading of the Accession Proclamation at Belfast City Hall on Sunday afternoon before a special meeting of Belfast City Council.
It follows the passing of Queen Elizabeth II on Thursday at the age of 96.
Official Proclamations will be read across the UK at 12pm on Sunday – at Royal Hillsborough and in Edinburgh and Cardiff - following the reading of the Principal Proclamation of the new King, Charles III, at St James’ Palace in the City of London on Saturday.