Now regional or with allusion to Hamlet (see quots. 1604 1604)
Middle English; earliest use found in Subsidy Roll, Leicestershire. Alteration of coroner, after crown.
1A person who crowns someone or something.
2 informal A heavy fall, especially (more fully "imperial crowner") one in which the person lands on his or her head. Now somewhat dated.
Late Middle English; earliest use found in Promptorium Parvulorum. Partly from crown + -er.
A military commander, a colonel; specifically the commander of troops raised in one county.
Early 17th century; earliest use found in Diurnal of Remarkable Occurrents. Alteration of colonel, after crown.