Occitan language map as of 1900. Europe only (missing overseas colonies like Valdese, NC, USA or Colonia Valdense, Uruguay.
Basque Country/Spain: Pasaia/Pasajes (still alive 1928).
Wuerttemberg/Germany: 4 villages where the language was spoken about 1930.

Calabria/Italy: Guardia Piemontese and San Sisto dei Valdesi.
Own work
Jfblanc