The Royal Fusiliers (City of London Regiment) was a line infantry regiment of the British Army in continuous existence for 283 years. It was known as the 7th Regiment of Foot until the Childers Reforms of 1881.

The Royal Northumberland Fusiliers was an infantry regiment of the British Army. Raised in 1674 as one of three 'English' units in the Dutch Anglo-Scots Brigade, it accompanied William III to England in the November 1688 Glorious Revolution and became part of the English establishment in 1689.