Looking south from the top floor attic of Arthur's residence, just across the street lay the infamously renowned Hyde Park.
Prior to the 16th century, Hyde Park was ecclesiastical land granted by His Majesty the King to Westminster Abbey.
However, in the 16th century, under the pretext of his desire for a divorce, King Henry VIII declared the English Catholic break from the Orthodox Church, established the National Church of England, and proclaimed himself as the supreme religious leader of England.
Furthermore, all Catholic Monasteries within England were ordered to dissolve, which naturally meant that the lands of Westminster Abbey were appropriated by the Crown.
Once reclaimed by the Crown, Henry VIII transformed Hyde Park into a Royal Park and a Royal hunting ground.