You will note that the name of this rose is spelled in contemporary documents as one word not two. The reason for this is that the reference is almost certainly not to the mountain itself (which is in Slovenia) but to Gabriele D'Annunzio who was the Prince of Montenevoso.

Since Montenevoso appears in the Ingegnoli catalogue it is surely a creation of Lodovico Cazzaniga and not of his son FG Cazzaniga.