Complex sentence: Harper was granted an audience with the Queen at Buckingham Palace on 5 June, where the Governor General, the Prime Minister, and the Queen also unveiled a new portrait of the sovereign commissioned by the federal Crown-in-Council.
Split into simpler sentences: Harper was granted an audience with the Queen at Buckingham Palace on 5 June. Also at the palace, the Governor General, the Prime Minister, and the Queen unveiled a new portrait of the sovereign commissioned by the federal Crown-in-Council.