15th (The King's) Hussars

Also known as 15th Dragoons

Chronology

1759 raised as Elliot's Light Horse, after George Augustus Eliott, 1st Baron Heathfield then soon after renamed the 15th Regiment of (Light) Dragoons
1766 renamed the 1st (or The King's Royal) Regiment of Light Dragoons
1769 renamed the 15th (The King's) Regiment of (Light) Dragoons
1807 renamed the 15th (The King's) Regiment of (Light) Dragoons (Hussars)
1861 renamed the 15th (The King's) Hussars
1921 retitled as the the 15th The King's Hussars
1922 amalgamated with the 19th Royal Hussars (Queen Alexandra's Own) to form the 15th/19th Hussars
1992 amalgamated with the 13th/18th Royal Hussars (Queen Mary's Own) to form The Light Dragoons

15th The King's Hussars including deployments www.regiments.org, an archived site.
15th The King's Hussars Wikipedia
15th/19th The King's Royal Hussars Wikipedia
Light Dragoons Wikipedia
The Light Dragoons Regimental Association ( 13th/15th/ 18th /19th Hussars/Light Dragoons) including Museums, Images
15th Hussars at Bangalore, April 1845 from Nominal Rolls The Asplin Military History Resources
Victorian Wars Forum thread about the 15th Hussars in India and Afghanistan 1869 to 1881

Historical record of the Fifteenth, or the King’s Regiment of Light Dragoons; Hussars: containing an account of the formation of the regiment in 1759, and of its subsequent services to 1841 Google Books 1841. Indian service commenced page 107 in 1839
15th Hussars leave India in 1854, page 200 Allen’s Indian Mail for 1854 Google Books