"Le pénitencier" lyrics were co-written by Hugues Aufray and Vline Buggy (alias for Evelyne et Liliane Koger).
@ Guest: re.copyright, if you mean how it works to translate lyrics (or anything): if the original work has a copyright you first need to get permission from the author and usually pay fees then the usual copyright laws apply to your translation; if the work is public domain, then you need neither permission nor pay fees but then the current copyright laws apply to your translation (= author's life +70 years in most countries, author's life + 90 years in the US).