The Nuttall Encyclopedia
A Roman emperor from June 68 to January 69, elected at the age of 70 by the Gallic legions to succeed Nero, but for his severity and avarice was slain by the Prætorian guard, who proclaimed Otho emperor in his stead.
Wood, James, ed. Entry for 'Galba'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/g/galba.html. Frederick Warne & Co Ltd. London. 1900.