Magnates and their honours · Kingdom of León · as at first light, 1 January 1200

Castro (Pedro Fernández)

The king's cousin and the most dangerous man in León.

Heir in 1185 to his father's lordships in the Extremadura (Ferdinand II had granted the elder Castro Trujillo, Montánchez, Santa Cruz and Monfragüe about 1168-70) and to rights in the Infantazgo of León, he served Castile until 1189, then León. He tried to wreck the Castilian-Leonese peace of Tordehumos in 1194, went over to the Almohads, fought on their side at Alarcos (19 July 1195), and in 1196 led the Leonese, Almohad and Navarrese raid on Castile with Alfonso IX as far as Carrión and Villasirga. Excommunicated with the king, he is back in León under the peace of 1197 that he opposed.

He will die an exile in Morocco in 1214.

Who he is

Name
Pedro Fernández de Castro
Title
Magnate (rico hombre); mayordomo mayor of León at times (named again after the post-Alarcos talks of 1196; mayordomo in 1204)
Since
Head of the Castro since his father's death in 1185
Born
About 1160; about 40
Family
Son of Fernando Rodríguez de Castro 'el Castellano' and Estefanía Alfonso 'la Desdichada', illegitimate daughter of Alfonso VII, whom his father killed in 1180. First cousin of Alfonso VIII and Alfonso IX. Wife Jimena Gómez de Manzanedo; children Álvaro Pérez de Castro (died 1240), Elo Pérez (first married to Martim Sanches, a son of Sancho I of Portugal, then in 1205 to Guerau IV de Cabrera) and Estefanía; brother Martín Fernández.
Confidence
medium

English Wikipedia life (after the Spanish genealogies); the 1196 raid from the war article.

Overlord

Alfonso IX

What it holds

  • Hereditary claims in the Extremadura from Ferdinand II's grant to his father: Trujillo he gave to Alfonso VIII in 1187 (for the Order of Santiago); Montánchez and Santa Cruz are in Almohad hands
  • Rights in the Infantazgo of León, inherited 1185 (thin)
  • Property in and around Mayorga (all given to Sobrado in 1213)
  • Lifetime use of Paradinas from the Hospitallers (arrangement of 1174 with his father)
  • Fiefs from Ferdinand II before 1188: Lemos and Sarria in Galicia, lands in the Extremadura and Transierra, Asturias, and the city of León. Which royal tenancies he holds on 1 January 1200 is not pinned

How it was acquired

Inheritance (1185) and royal grants.

Allies and rivals

Enemy of Alfonso VIII since their quarrel of 1189; ally of the Almohads in 1194-96; tied to Portugal through his daughter's marriage. His father killed Count Osorio Martínez at Lobregal in 1160, grandfather of Rodrigo Pérez de Villalobos. Rival of the Laras, whom Castile backs, and of the Traba at court.

How things stand that morning

In León and at peace only because his king is; no tenancy or office pinned for 1 January 1200 (he is the likeliest mayordomo, unproven). Still under the excommunication of 1196.

Wealth

Estates in the Leonese plain (Mayorga, the Infantazgo); rents from royal tenancies when he holds them.

Military

His own household knights and vassals; an experienced commander who has served in Almohad armies and knows the Extremadura frontier. No figures.

Threats

  • Alfonso VIII's hostility under a peace that favours Castile
  • The excommunication
  • Court rivals (Lara, Traba)

What the year holds

What happened next, if nothing in play changes it. Each event carries what it depends on and what would stop it.

  1. 1204 (later)Mayordomo of Alfonso IX again; joins the Order of Calatrava as a familiar with his family; Alfonso VIII restores confiscated properties.Depends on: The León-Castile settlement after the separation Stopped by: A new war

Places of note

  • Castro estates at Mayorga: Property, not lordship
  • Paradinas (Hospitaller property, life use): Identification with Paradinas de San Juan is likely but not pinned

Where the sources disagree

  • The English life dates his Almohad agreement to 1194 and has him at Alarcos on the Almohad side; the 1196 raid with Alfonso IX comes from the war article.

Evidence: Career well known in outline; his tenancies and office on 1 January 1200 are not pinned.

On the map: Only his claims are drawn. His Leonese tenancies in 1200 are not pinned, so none is painted.

Primary sources for León

Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.

5 more in the sources library for France and Iberia.

Sources and studies

  1. Pedro Fernández de Castro (died 1214) (Wikipedia, en)
  2. Castilian-Leonese War (1196-1197) (Wikipedia, en)
  3. Fernando II de León (Wikipedia, es): fueros and grants
  4. J. I. del Amo Lobo, Los Villalobos en Santa María la Real de Aguilar de Campoo, Brigecio 27 (2017)

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.