The Nuttall Encyclopedia
A province of ancient Italy, between Cisalpine Gaul and the territory of the Sabines; inhabited originally by a powerful Latin race.
Wood, James, ed. Entry for 'Umbria'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/u/umbria.html. Frederick Warne & Co Ltd. London. 1900.