Wallace Collection of the wealthiest families in Europe. They owned large properties in England, Wales and Ireland, and increased their wealth through successful marriages. Politically of lesser importance, the 3rd and 4th Marquess and Sir Richard Wallace became leading art collectors of their time. The Wallace Collection, comprising about 5,500 works of art, was bequeathed to the British nation by Lady Wallace in 1897. The state then decided to buy Hertford House to display the collection and it was opened as a museum in 1900. As a museum the Wallace Collection's main strength is perhaps its extraordinary array of 18th-century French art:
Marquess of Waterford Field Marshal in the British Army and was created Viscount Beresford in 1823. John Beresford, illegitimate son of the first Marquess, was a soldier and politician and was created a baronet in 1814 (see Beresford-Peirse baronets). Lord Charles Beresford, second son of the fourth Marquess, was a naval commander and politician and was created Baron Beresford in 1916. Lord William Beresford, third son of the fourth Marquess, was a soldier and recipient of the Victoria Cross. Lord Marcus Beresford, fourth son of the fourth Marquess, was a courtier. The eldest son of the Marquess is styled with the courtesy title