Other costs include £2.9m by the Ministry of Defence, £2.6m by the Department for Transport, £2.2m by the Welsh government and £2.1m by both the Foreign, Commonwealth and Development Office and the Northern Ireland Office.

The Treasury said that the costs include “fully refunding” the Scottish and Welsh governments, and the Northern Ireland Office, “which in turn they were able to repay to partners who also incurred costs”.

The late Queen’s funeral was the first state funeral since Winston Churchill’s in 1965, which cost an estimated £2.5m (the equivalent of £39.5m today), according to reports.

The Queen Mother’s royal ceremonial funeral in 2002 cost more than £5.4m (£9.3m today) with policing costs amounting to £4.3m (£7.4m) –  and the lying in state coming to £825,000 (1.4m).

The cost of Prince Philip’s funeral in Apr 2021 has not been revealed but is likely to have been considerably less as it took place during lockdown and within the confines of Windsor Castle.

Princess Diana’s funeral in 1997 was between £3m and £5m (£5.5m and £9m today).