1st Royal Lancashire Militia (The Duke of Lancaster's Own)

1st Royal Lancashire Militia (The Duke of Lancaster's Own) 3rd and 4th Bns, King's Own (Royal Lancaster Regiment)
Active	1661–April 1953
Country	Kingdom of England (1661–1707)  Kingdom of Great Britain (1707–1800)  United Kingdom (1801–1953)
Branch	Militia
Role	Infantry
Size	1-2 Battalions
Garrison/HQ	Springfield Barracks, Lancaster, Lancashire (1856–83) Bowerham Barracks, Lancaster (1883–1953)
Nickname(s)	The Old County Regiment The Duke's Own
Engagements	Campaign in Ireland Siege of Carrickfergus Battle of the Boyne Siege of Athlone Jacobite Rising of 1715 Battle of Preston Jacobite Rising of 1745 Clifton Moor Skirmish Second Boer War
Commanders
Notable commanders	James Stanley, 10th Earl of Derby James Smith-Stanley, Lord Strange Thomas Stanley of Cross Hill John Talbot Clifton Frederick Stanley, 16th Earl of Derby

The 1st Royal Lancashire Militia (The Duke of Lancaster's Own) was an auxiliary^[a] regiment raised in the county of Lancashire in North West England during the 17th Century. Primarily intended for home defence, it saw active service in Ireland under King William III, as well as against the Jacobite Risings of 1715 and 1745. It spent long periods on defence duties during the wars of the 18th Century and early 19th Century, and was stationed on the Ionian Islands during the Crimean War. It later became part of the King's Own (Royal Lancaster Regiment) and saw active service in the Second Boer War. After its conversion to the Special Reserve under the Haldane Reforms, it supplied reinforcements to the fighting battalions during World War I. After a shadowy postwar existence the unit was finally disbanded in 1953.
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