The area was originally part of the vast forest of Middlesex and was called Marylebone Park after the village and manor nearby. There were thick woods, particularly going up the slope towards Primrose Hill. But on the lower ground the woods were more open and were perfect for deer.
This caught the eye of King Henry Vlll. In 1538, he seized the park from the owner, the Abbess of Barking, and turned 554 acres into a hunting chase.
The "Abbess of Barking"! This struck me as an hysterically funny phrase. I immediately checked with Google, and to my amazement, couldn't find any evidence that anybody had ever named their dog The Abbess of Barking. What is wrong with you people?
Barking "is a suburban town in east London, England and the main district of the London Borough of Barking and Dagenham."
English places gots funny names, har har.
This is what I imagine the Abbess of Barking looks like: