Cirencester is a market town in east Gloucestershire, England, 93 miles (150 km) west northwest of London. Cirencester lies on the River Churn, a tributary of the River Thames, and is the largest town in the Cotswold District. It is the home of the Royal Agricultural College, the oldest agricultural college in the English-speaking world founded in 1840. The town’s Corinium Museum is well known for its extensive Roman collection.