The things you learn via the Web. There I was perusing the Ripuarian version of Wikipedia when I came across a user who alleged to be a speaker (albeit beginning) of Europanto (also here and here. Never heard of it, and I consider myself a connoisseur of conlangs (i.e., constructed languages). It was a mock auxiliary language created by an EU translator, Diego Marani (of Italy). It's heyday was 1996–2005, and Mr Marani even wrote a novel, Las Adventures Des Inspector Cabillot (1999), in it.