Book excerpt: 53 page Leeds Castle Calendar 2021. You get a week per page. There is enough space on each page to record your priorities and things to do. The calendar can be used as a weekly planner. An ideal gift for everyone who is interested in English history. The planner comes in a large format. Please have a look inside. Leeds Castle is a castle in Kent, England, 5 miles (8 km) southeast of Maidstone. It is built on islands in a lake formed by the River Len to the east of the village of Leeds.