County of Trastámara

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The river Tambre, southern boundary of the Trastámara

The County of Trastámara (Spanish Condado de Trastámara) was a tenancy of the crown in the Kingdom of Galicia in the Middle Ages. Its name comes from the Latin tra(n)s Tamar(is), meaning "beyond [north of] the Tambre", a river which runs through Galicia. It was regularly granted to men of a single family, the House of Traba from the 11th century into the 13th, after which it was often given for life to others, including and the future King Henry II of Castile, whose dynasty is thus known as the House of Trastámara. On 4 February 1445 in San Martín de Valdeiglesias, it was granted as a hereditary possession to by Juan II of Castile.

Counts[]

House of Traba[]

• Froila Bermúdez de Traba (d. 1091)
• Pedro Fróilaz de Traba (r. 11251126, d. 1128), son of prec.
• Fernando Pérez de Traba (r. 1132–1145, d. 1155), son of prec.
• Gonzalo Fernández de Traba (r. 1155–1159, d. 1165), son of Fernando Pérez
• Fernando González de Traba (r. 1161–1165, d. 1165), son of prec.
• Bermudo Pérez de Traba (d. 1168), son of Pedro Fróilaz
• Gómez González de Traba (r. 1165–1208, d. c. 1211), son of Gonzalo Fernández
• Rodrigo Gómez de Traba (r. c.1220–c.1260, d. c. 1261), son of prec.

House of Osorio[]

• , I Count of Trastámara;
• , II Count of Trastámara (I );
• , III Count of Trastámara;
• , IV Count of Trastámara;
• , V Count of Trastámara;
• , VI Count of Trastámara;
• , VII Count of Trastámara;
• , VIII Count of Trastámara;
• , IX Count of Trastámara;
• , X Count of Trastámara;
• , XI Count of Trastámara;
• , XII Countessa of Trastámara;
• , XIII Count of Trastámara;
• , XIV Countessa of Trastámara;
• , XV Count of Trastámara;