Alcmund of Derby or of Lilleshall, also spelt Ealhmund, Alhmund, Alkmund, or Alchmund (d. c. 800) was son of Alhred of Northumbria

Alhred of Northumbria

Alhred or Alchred was king of Northumbria from 765 to 774. He had married Osgifu, either the daughter of Oswulf, granddaughter of Eadberht Eating, or Eadberht's daughter, and was thus related by marriage to Ecgbert, Archbishop of York...

. After more than twenty years in exile among the Picts

Picts

The Picts were a group of Late Iron Age and Early Mediaeval people living in what is now eastern and northern Scotland. There is an association with the distribution of brochs, place names beginning 'Pit-', for instance Pitlochry, and Pictish stones. They are recorded from before the Roman conquest...

 as a result of Northumbrian dynastic struggles, he returned with an army. He was killed in about 800, in some way which is not now clear but for which King Eardwulf of Northumbria

Eardwulf of Northumbria

Eardwulf was king of Northumbria from 796 to 806, when he was deposed and went into exile. He may have had a second reign from 808 until perhaps 811 or 830. Northumbria in the last years of the eighth century was the scene of dynastic strife between several noble families, and, in 790, the...

 was held responsible. Whatever the exact circumstances, his death was regarded as a martyrdom, and Alcmund as a saint.
Alcmund was buried at Lilleshall

Lilleshall

Lilleshall is a village in Shropshire, England.It lies between the towns of Telford and Newport, on the A518, in the Telford and Wrekin borough and the Wrekin constituency....

 in Shropshire

Shropshire

Shropshire is a county in the West Midlands region of England. For Eurostat purposes, the county is a NUTS 3 region and is one of four counties or unitary districts that comprise the "Shropshire and Staffordshire" NUTS 2 region. It borders Wales to the west...

, where miracles were reported at the tomb. Due to Danish raids, his body was translated to Derby

Derby

Derby , is a city and unitary authority in the East Midlands region of England. It lies upon the banks of the River Derwent and is located in the south of the ceremonial county of Derbyshire. In the 2001 census, the population of the city was 233,700, whilst that of the Derby Urban Area was 229,407...

, and St Alkmund's Church

St Alkmund's Church, Derby

Saint Alkmund's Church was a Victorian Church, which stood in a Georgian square between Bridgegate and Queen Street in Derby; this was the only Georgian square in the city.-History:...

and its replacement were dedicated to him. The church was demolished in the 20th century and several earlier churches were revealed stretching back to the 9th century. Artefacts found included the stone sarcophagus.

His feast day is 19 March.