▁The ▁Dom es day ▁Book ▁( 1 0 8 6 ) ▁records ▁the ▁Man or ▁of ▁En field ▁as ▁being ▁held ▁by ▁Geoff rey ▁de ▁Man dev ille ▁and ▁mentions ▁' there ▁is ▁a ▁park ▁there '. ▁The ▁word ▁' park ' ▁in ▁this ▁sense ▁refers ▁to ▁a ▁preserve ▁for ▁game , ▁and ▁the ▁park ▁was ▁reserved ▁for ▁this ▁use ▁until ▁the ▁ 1 8 th ▁century . ▁As ▁the ▁man or ▁of ▁En field ▁had ▁been ▁held ▁in ▁Ang lo - S ax on ▁times ▁by ▁As gar , ▁Master ▁of ▁the ▁Stud ▁to ▁Edward ▁the ▁Conf essor , ▁it ▁is ▁very ▁possible ▁that ▁the ▁area ▁was ▁already ▁a ▁game - park ▁before ▁the ▁Norman ▁Con quest . ▁John ▁Norden ' s ▁map ▁of ▁M idd les ex ▁( c . ▁ 1 5 9 3 ) ▁clearly ▁shows ▁the ▁f enced - in ▁Old ▁Park , ▁with ▁Sal m ons ▁Brook ▁flow ing ▁through ▁it . ▁ ▁Royal ▁property ▁In ▁the ▁media eval ▁era ▁the ▁Park ▁was ▁recorded ▁in ▁documents ▁as ▁' Par cus ▁In tr ins icus ' ▁( Lat in , ▁' the ▁Inner ▁Park ') ▁to ▁distinguish ▁it ▁from ▁the ▁much ▁larger , ▁and ▁un en closed , ▁En field ▁Ch ase . ▁The ▁name ▁' Old ▁Park ' ▁seems ▁to ▁have ▁been ▁applied ▁from ▁the ▁ 1 5 th ▁century . ▁Ar ound ▁this ▁time , ▁ ▁the ▁Park , ▁together ▁with ▁the ▁Man or ▁of ▁En field , ▁became ▁royal ▁property ▁as ▁part ▁of ▁the ▁Duch