Peter I., the Cruel, of Castile, 1334-1369.
Ferrer del Rio, A. D.120,15=D.1335.13=D.135.11 Examen historico-erf{tico del reinado de Don Pedro de Castilla, Madrid. 1851. 8°.
- Peter I., the Cruel, of Castile, 1334-1369.