This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Biography: Musicians This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography articles This article is supported by WikiProject Musicians. This article has been automatically rated by a bot or other tool because one or more other projects use this class. Please ensure the assessment is correct before removing the |auto= parameter. Opera This article falls within the scope of WikiProject Opera, a group writing and editing Wikipedia articles on operas, opera terminology, opera composers and librettists, singers, designers, directors and managers, companies and houses, publications and recordings. The project discussion page is a place to talk about issues and exchange ideas. New members are welcome!OperaWikipedia:WikiProject OperaTemplate:WikiProject OperaOpera articles

Searching the internet for 'Louis Guéymard', it looks like the only source that includes an accent on the surname is English Wikipedia, or a few places that could have been influenced by that (ie user-supplied, non-authoritative).

Some examples without an accent: Philharmonie's Musee de la Musique, the BnF, ...

The enWP article doesn't give any authoritative sources for the name. I suggest the accent be removed. Scarabocchio ( talk) 12:38, 2 April 2023 (UTC) reply

Wrong! (oups) The Grove Book of Opera Singers has it as "Guéymard". Still no French source, but Grove is enough to stop a quick page move. Scarabocchio ( talk) 19:46, 2 April 2023 (UTC) reply