Not to be confused with Charles d'Orléans, comte d'Angoulème, 1459-1496
Call to Garland Pub., 1/2/86 (Charles d'Orleans I; "I" belongs to the name to distinguish him from the other Charles d'Orleans)
Champollion-Figeac, A.L. Louis et Charles, ducs d'Orléans, 1980 t.p. (Charles, duc d'Orléans) p. 62 (b. May 1391) p. 386 (d. 1-4-1465)
Encyc. Brit., 15th ed. (Charles, duc d'Orléans, b. 11-24-1394, d. 1-4-1465)
Grand Larousse (Orléans, Charles d', 1391-1465)
Grande encyc. (Charles d'Orléans, 1391-1465)
His The French chansons, 1986 CIP t.p. (Charles d'Orleans (I))
McLeod, E. Charles of Orleans, 1970, c1969 p. 15 (b. 11-24-1394) p. 361 (notes: date of 1394 is documented, together with source of erroneous date of May 1391, which was used by, among others, Saintsbury in his art. for the Encyc. Brit.)