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The Nuttall Encyclopedia
Adolph of Nassau
Kaiser from 1291 to 1298, "a stalwart but necessitous Herr" Carlyle calls him; seems to have been under the pay of Edward Longshanks.
Wood, James, ed. Entry for 'Adolph of Nassau'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/a/adolph-of-nassau.html. Frederick Warne & Co Ltd. London. 1900.