Either of two plays by William Shakespeare (late 1590s)
The First Part of Henry the Fourth
The Second Part of Henry the Fourth
"Henry IV ," by William Hazlitt in Characters of Shakespear's Plays (1817)
"Henry IV ," in Dictionary of National Biography, 1885-1900 , London: Smith, Elder, & Co. (1885–1900) in 63 vols.
"Henry IV. (Roman emperor) ," by Arthur William Holland in Encyclopædia Britannica (11th ed., 1911)
"Henry IV. of Castile ," in Encyclopædia Britannica (11th ed., 1911)
"Henry IV. of England ," by Charles Lethbridge Kingsford in Encyclopædia Britannica (11th ed., 1911)
"Henry IV. of France ," in Encyclopædia Britannica (11th ed., 1911)
"Henry IV (French king) ," by Georges Goyau in Catholic Encyclopedia , (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
"Henry IV (Roman emperor) ," by Franz Kampers in Catholic Encyclopedia , (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
"Henry IV ," in The New Student's Reference Work , Chicago: F.E. Compton and Co. (1914)
"Henry IV (emperor of Germany) ," in The New Student's Reference Work , Chicago: F.E. Compton and Co. (1914)