Bessen, D.M. Charles of Navarre and John II [MI] 1985 t.p. (Charles of Navarre) abstract (King Charles II of Navarre) introd. (referred to as Charles the Bad) p. 358 (d. 1387)
Enc. Americana (Charles II, the Bad, 1332-1387, King of Navarre 1349-)
Le Cartulaire dit de Charles II, roi de navarre, 2010 t.p. (Carlos II, rey de Navarra)