About the D'Éon surname
The surname D'Éon has a primarily toponymic formation. The structure of the surname suggests a locational or toponymic formation linked to a place, estate, or landscape feature. In this type of surname, the name first located a person in relation to a place before becoming hereditary. The opening particle in D'Éon is part of the surname's structure. In French surnames, forms of this kind are often associated with a place, estate, landscape feature, or older nickname. In the normalization used for some LAFRANCE searches, the surname is also matched through the form “deon”; this search variant can be useful when accents, spaces, or punctuation differ.
Pronunciation:
Déon/deɔ̃/