Bound parchment book, ‘Muster Book of the King’s Army, 1641’, inscribed to Sir Jacob Astley, 25 March 1641, and submitted by the scribe, Strafforde (5 November 1641), comprised of names of  officers and men of foot regiments, cavalry and artillery, and including a note on orders issued by Astley (12 January - 23 November 1640); relating to the English Civil War (1642-1649).

Jacob, first Baron Astley of Reading, was a Royalist army officer, (1579-1652) and this muster book provides details of the army of King Charles I prior to the Civil War.