dEustache
dEustache is a stylized form used in Francophone naming conventions that can function as a surname or as a pseudonym. The element 'd' (from de, meaning 'of' or 'from') combined with Eustache reflects the given name Eustace, itself derived from the Latin Eustachius. The resulting construction points to lineage, origin, or attribution, and is more commonly encountered in modern branding than in historical records.
Orthography varies by context. In standard French, the name would appear as de Eustache or d'Éustache, with
Because dEustache is not a widely established given name or surname in large biographical corpora, individuals
Related names and forms include Éustache (the French given name), Eustace (the English counterpart), and de Eustache