The surname Longcham was first found in Herefordshire "where Henry I. granted to Hugh de Longchamp the castle and manor of Wilton, to hold by the service of two mens-at-arms in the Welsh wars: and the gift was confirmed to his son, Hugh II, by Henry II., the year after accession. The next heir Henry de Longchamp, Sheriff of Hereford in 1190, and of Wrocester in 1195, married Maude, sister of William de Cantilupe, and died in 1211. " 
"Longchamp gained the absolute confidence of the King, who on leaving England for the Crusade of 1189, appointed him and Hugh Pudsey, joint regents of the Kingdom." 
Nigel de Longchamps, also known as Nigel Wireker, (fl. c. 1190-1200), was an English satirist, poet and monk of Christ Church, Canterbury. William Longchamp (died 1197), also known as William de Longchamp or William de Longchamps, was a medieval Lord Chancellor, Chief Justiciar, and Bishop of Ely in England. His family originated in the village of Longchamps, Normandy.
His brother, Henry de Longchamp or Henry de Longo Campo (c1150-1212), born in Wilton Castle, near Ross-on-Wye, Herefordshire was an English politician, High Sheriff of Herefordshire for 1190 and 1193 and later was appointed High Sheriff of Worcestershire from 1195 to 1197. 
Ralph of Longchamp (c.1155-c.1215) was an English physician and natural philosopher who taught at Oxford and possibly in Paris.
Longshaw is an area within Billinge Higher End at the western boundary of the Metropolitan Borough of Wigan, in Greater Manchester. And Longshaws, is a township, in the parish of Long Horsley, union of Morpeth, in Northumberland. The Longshaw Estate is an area of moorland, woodland and farmland in the Peak District National Park, Derbyshire, England. The Estate has been held by the National Trust since 1931.