three dining rooms in this corner, each taller and more lavishly decorated than the one below. A common parlour on the ground floor was used by the gentlemen of the household, and later for informal family meals. Above it was the main family dining room, and at the top the Great Chamber, which was reserved for royalty, although the 6th Duke wrote that to his knowledge, it had never been used. The yellow drawing room is next to the dining room and directly beneath the State Drawing Room. The Dowager Duchess wrote that the house is so solidly built that the crowds passing above are imperceptible. The trio of reception rooms here is completed by the blue drawing room, below the State Music Room. This was created in the 18th century by knocking together the 1st Duke's bedroom and dressing room, and has a door to his private gallery at the upper level of the chapel. It has also served as a billiard room and a school room. Charity events are sometimes held in this part of the house. Both drawing rooms have access to the garden through the South Front's external staircase. Three corridors called the Tapestry Gallery, Burlington Corridor and Book Passage are wrapped round the south, west and north passages at this level and give access to family bedrooms. There is a sitting room in the north-west corner — one of the few rooms in the house with outside views in two directions. There are more family bedrooms on the second floor facing west and north. The Scots and Leicester bedrooms in the east wing are still used when there is a large house party, which is why they are sometimes available as a separately charged optional extra in the tour of the house and sometimes not. This suite now contains the 11th Duke's Exhibition. Visitors bypass the first floor on their way down the West Stairs from the state rooms to the chapel. The private north stairs lead down to more private rooms on the ground floor of the West Front. In the centre is the West Entrance Hall, which is, once again, the family entrance. To the right on entering is a passage room known as the mineral room, which leads through to a study. To the left there is the Leather Room with walls of leather. Its great many books make it one of