Private Investigator
Lillingstone Dayrell

Buckinghamshire's county town is Aylesbury (/ˈeɪlzbəri/ AYLZ-bər-ee). Had a fortress or castle "of some importance, from which circumstance it derives its Saxon appellation", one of the ancient Britons strongholds was Aylesbury, from whom, in the year 571, it was taken by King of the West Saxons, brother of Ceawlin, Cutwulph. In 1529, King Henry VIII declared Aylesbury Buckinghamshire's county town: Aylesbury Manor, belonging to the father of Anne Boleyn, Thomas Boleyn, was among the many properties and it is rumoured that the change was made by the King to curry favour with the family.

Although one breeder, Richard Waller, of true Aylesbury ducks remains today, Aylesbury's heraldic crest displays the Aylesbury duck, which has been bred here since the Industrial Revolution. Founded in 1598, Aylesbury Grammar School is notable. Within Aylesbury Vale district, Aylesbury Town Council is the parish council. The Weedon Hill and Berryfields developments, both to Aylesbury's north, should join to form a new parish as of May 2011 was decided by the district council in 2010. Bringing industry to the town for the first time, the Grand Union Canal's Aylesbury arm was opened from Marsworth in 1814.

Aylesbury F.C. which plays at Haywood Way and Aylesbury United F.C. which shares a ground with Chesham United, include local semi-professional football teams that Aylesbury has. A large number of people were born in Aylesbury who may not have had any other association with the town, the district's unit for maternity was located at the Royal Buckinghamshire Hospital in Aylesbury in the latter part of the 20th century. In Anglo-Saxon times, Aylesbury was a market town, Saint Osgyth place of burial, where pilgrims were attracted to his shrine.

When it became a stronghold for the Parliamentarian forces, the town played a large part in the English Civil War, like market towns a Puritan sentiment nursing-ground and the Aylesbury Battle, in 1642, by the Parliamentarians was fought and won. When the culprits responsible for the (1963) Great Train Robbery in Walton Street at the Rural District Council Offices of Aylesbury were tried and at the Crown Court of Aylesbury sentenced, the town received international publicity in the 1963. Part of the County Museum buildings in Church Street is the original building and has architecture of grade II*; other schools of grammar include Aylesbury High School and Sir Henry Floyd Grammar School.

Produced works relating to the town including the canal, church, Aylesbury Gaol, Walton, the King's Head Inn and town views during the 1940s and 1950s, examples of which can be seen in the Buckinghamshire County Museum in Aylesbury, James Henry Govier the British painter and etcher lived at Aylesbury. Suburban Aylesbury could become wholly or largely contiguous with the Hartwell, Bierton, Stone, Stoke Mandeville, Weston Turville and Sedrup villages that are neighbouring, if plans are approved to increase expected housing capacity add of twenty thousand people as expected.

Partly sited on Portland's northernmost outcrops of (lime)stone bisected by a stream in England, Bear Brook which, in relation to the terrain of all lower, near, suburbs and fields, gives a position that is relatively prominent, which have largely slowly permeable soils of Kimmeridge Clay and Oxford Clay, Aylesbury is southeast of the River Thame's upper that flows to Dorchester on Thames past Thame and is On Bierton Road, Aylesbury has for mental therapy and treatments the Tindal Centre. The latter is terminus of passenger services of London to Aylesbury Line from London Marylebone, Aylesbury railway station and Aylesbury Vale Parkway railway station serve the town.