 Complete the following phrase:  A City Brigade marched with the Earl of Essex through Royalist-held territory to relieve the Siege of Gloucester and distinguished itself at the subsequent First Battle of Newbury 20 September 1643. Thereafter, brigades of London troops participated in the Siege of Basing House and the battles of Alton 13 December 1643, Cheriton 29 March 1644 and 