The story
- Old French · derived fromcastel“fortress, castle”
- English todayCastel
* As an English surname, variant of Castle. * As a Catalan, Aragonese, and Jewish surname, variant of Castell. * As a Swedish surname, variant of Cassel. * As a German surname, variant of Kastel, from Kastell (“fort, citadel, castle”), related to the above. * As a French surname, from Old French castel (“fortress, castle”).
Etymology from Wiktionary, CC BY-SA 4.0.