Do you know which room in Church House Westminster played host to the House of Commons during the Second World War?

If so, you could win a pair of Beating Retreat tickets on 6 June at Horse Guards Parade.

A must-see event, this impressive programme of rousing military and contemporary music will be performed by the finest musicians of the Massed Bands of the Guards. They will be joined this year by The Mounted Band of the Household Cavalry, The King’s Troop Royal Horse Artillery, the Royal Choral Society and guest performers The Band and Pipes of the Royal Guard of Oman and The Pipes & Drums of the Argyll and The Band & Pipes of the Royal Regiment of Scotland.

Email your answer to pressoffice@churchhouseconf.co.uk.

Prize includes one pair of Beating Retreat tickets on 6 June at Horse Guards Parade.

Competition closes on 4 June at 4.30pm. Winner to be notified via email.