Silvester de Everdon (died 1254) was a Bishop of Carlisle and Lord Chancellor of England.
Life
Everdon came from the village of Everdon, near Daventry in Northamptonshire, but other than the fact that he was related to a locally prominent family of Thorp, nothing else is known of his ancestry. He was a priest in Northamptonshire from 1219. In 1229 he entered the service of Ralph Neville, who was Bishop of Chichester and Lord Chancellor, as a chancery clerk and continued on in the chancery until his election to Carlisle. In 1244 Everdon became Lord Chancellor (holding the post until 1246) and in 1245 he became the Archdeacon of Chester. He was elected to the see of Carlisle about 1 September 1246 but declined the see. He was consecrated on 13 October 1247. after being thrown from a horse