EncyclopediaJohn I
John I or John the Posthumous,1316, king of France, posthumous son of King Louis X. He lived only five days and was succeeded by his uncle, Philip V. According to legend, a dying child was substituted for John, who was then brought up by a merchant in Siena.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.