Berkshire 2009 Calendar. This popular A4 appointment calendar features many famous buildings and landscapes from around Berkshire. The county of Berkshire lies to the west of London in the fertile Thames valley region. It is amongst the oldest counties in England and is believed to date from 840 at the time of unification of 'Sunningum' and 'Ashdown'. The name Berkshire is believed to have come from a large forest of box trees that was called Bearroc. Berkshire is often known as and referred to as the Royal County of Berkshire, primarily due to the presence of a royal residence - Windsor Castle. This delightful calendar opens out to reveal a month-to-view with beautiful images of The Royal County of Berkshire.