Engelbert
Appearance
- "Engelbert," in The New International Encyclopædia, New York: Dodd, Mead and Co. (1905)
- "Engelbert," by Michael Ott in Catholic Encyclopedia, (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
- "Engelbert," in The Encyclopedia Americana, New York: The Encyclopedia Americana Corporation (1920)