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Grand Duke's Birthday 2026 in Luxembourg

Grand Duke's Birthday falls on 2026-06-23 in the Luxembourg public holiday calendar.

  1. Tue, 23 Jun 2026Grand Duke's Birthday

    The supplied calendar labels 23 June 2026 as Grand Duke’s Birthday (Großherzogsgeburtstag) and classifies it as a public holiday. No context excerpt was supplied to explain the name, its relationship to Luxembourg’s national celebrations, or whether it refers to a ceremonial birthday rather than the sovereign’s personal birth date. The date and label can be reported as listed, but those distinctions should be verified with an official Luxembourg source before adding historical or ceremonial detail.