Duke of Northumberland in the context of "Northumberland Avenue"

Duke of St Albans is a title in the Peerage of England. It was created in 1684 for Charles Beauclerk, 1st Earl of Burford, then 14 years old. King Charles II had accepted that Burford was his illegitimate son by Nell Gwyn, an actress, and awarded him the dukedom just as he had conferred those of Monmouth, Southampton, Grafton, Northumberland, and Richmond and Lennox on his other illegitimate sons who married.

The subsidiary titles of the Duke are Earl of Burford, in the County of Oxford (1676), Baron Heddington, in the same (1676) and Baron Vere, of Hanworth in the County of Middlesex (1750). The Earldom and the Barony of Heddington are in the Peerage of England, and the Barony of Vere is in the Peerage of Great Britain. The dukes hold the hereditary title of Grand Falconer of England, and until the end of the 18th century they were Hereditary Registrars of the Court of Chancery.

The Northumbrian smallpipes (also known as the Northumbrian pipes) are bellows-blown bagpipes from Northeastern England, where they have been an important factor in the local musical culture for more than 250 years. The family of the Duke of Northumberland have had an official piper for over 250 years. The Northumbrian Pipers' Society was founded in 1928, to encourage the playing of the instrument and its music; Although there were so few players at times during the last century that some feared the tradition would die out, there are many players and makers of the instrument nowadays, and the Society has played a large role in this revival. In more recent times the Mayor of Gateshead and the Lord Mayor of Newcastle have both established a tradition of appointing official Northumbrian pipers.

In a survey of the bagpipes in the Pitt Rivers Museum, Oxford University, the organologist Anthony Baines wrote: "It is perhaps the most civilized of the bagpipes, making no attempt to go further than the traditional bagpipe music of melody over drone, but refining this music to the last degree."

Jane Dudley, Duchess of Northumberland (née Guildford; 1508/1509 – 15 or 22 January 1555) was an English courtier. She was the wife of John Dudley, 1st Duke of Northumberland, and mother of Guildford Dudley and Robert Dudley, 1st Earl of Leicester. Having grown up with her future husband, who was her father's ward, she married at about age 16. They had 13 children.

Jane Dudley served as a lady-in-waiting at the court of Henry VIII and was a close friend of his final wife, Katherine Parr. Reformed in religious outlook, she was also a supporter of the Protestant martyr Anne Askew. Under the young Edward VI, John Dudley became one of the most powerful politicians, rising to be Earl of Warwick and later Duke of Northumberland. After the fall of Lord Protector Somerset in 1549, John Dudley joined forces with his wife to promote his rehabilitation and a reconciliation between their families, which was symbolised by a marriage between their children.

Syon Park /ˈsaɪən/ is the garden of Syon House, the London home of the Duke of Northumberland in Brentford in the London Borough of Hounslow. It was landscaped by Capability Brown in the 18th century, and it is Grade I listed by English Heritage under the Historic Buildings and Ancient Monuments Act 1953 for its special historic interest. The 56.6-hectare (140-acre) main gardens are a Site of Borough Importance for Nature Conservation, Grade I, and the flood meadows next to the River Thames are a biological Site of Special Scientific Interest (SSSI) and a Site of Metropolitan Importance for Nature Conservation.

Northumberland House (also known as Suffolk House when owned by the Earls of Suffolk) was a large Jacobean townhouse in London, so-called because it was, for most of its history, the London residence of the Percy family, who were the Earls and later Dukes of Northumberland and one of England's richest and most prominent aristocratic dynasties for many centuries. It stood at the far western end of the Strand from around 1605 until it was demolished in 1874. In its later years it overlooked Trafalgar Square.