Sancho "Brazo de fierro" Martínez de Leyva, Señor de Leiva y Baños

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Sancho "Brazo de fierro" Martínez de Leyva, Señor de Leiva y Baños

Also Known As: "Martínez de Leyba", "Martínez de Leiva"
Death: Died
Immediate Family:

Son of Juan Martínez de Leiva y Velasco, III señor de Leyva, merino mayor de Castilla and María Díaz de Ceballos
Husband of Elizabeth / Isabella Martínez de Leyva and Leonor Vélez de Guevara Castilla
Father of Juana García de Leyva, Señora de Hacinas, Quintanilla y Villavaquerín; Juana Martínez de Leyva; Elvira Martinez de Leiva y Velez de Guevara and Ladrón de Leyva, VII señor de Leyva y Valdezcaray
Half brother of Juan Martínez de Leiva y Avellaneda; Sancha de Leyva y Avellaneda; Gonzalo Carrillo, Señor de Quintana; Alonso Gomez (Ruiz) Carrillo and Gómez Carrillo

Occupation: Señor de Leiva, Vasallo del Rey de Castilla & del Rey de Inglaterra, & [de su esposa la] Princesa Isabel [hija del Rey Eduardo III de Inglaterra]
Managed by: Justin Swanström
Last Updated:

About Sancho "Brazo de fierro" Martínez de Leyva, Señor de Leiva y Baños

"Having said so much of the Prince of Wales, I cannot take leave of this subject without paying a just tribute to the memory of the illustrious Spaniard, who was not only his cotemporary, but singularly attached to his person, and to the English nation in general. This was Don Sancho Martinez de Leyva, son of Don John Martinez de Leyva, first lord of the bed-chamber to king Alfonso XI. and Adelantado Mayor of Castile. His son Sancho came over to England, where he offered his services to Edward III. and attended on John duke of Lancaster in his expedition to Scotland. He afterwards went into France, and served under the Prince of Wales, with whom he was at the famous battle and victory of Poictiers. After this he commanded the English army in [77] Picardy, and was very instrumental in the advantages gained over the French in those wars; and from his remarkable strength of body was called Brazo de fierro, or "Iron Arm." In recompence for his services, when he returned to England, Edward III. to testify his regard for his person, gave him in marriage his natural daughter Elizabeth, by Elizabeth Suffolk, countess of Northumberland, granting him further the privilege, in addition to his paternal coat armour, to quarter the armorial bearings of England." Dillon, 76-77.

"There are ascribed to this king [Edward III] two natural children, viz. John Baldac 4, and Isabella, married to Sancho Martinez de Leiva 5, a Spanish nobleman, who on her account quartered the English leopards in his ecutcheon." Carte, 539.

For a discussion of Sancho and the supposed relationship of his wife to Edward III, see Casa de Leiva and ill dau of King of England and Edward III's illegitimate daughter ? at soc.genealogy.medieval, visited Jan. 3, 2013.


apellido: señor de Leiva y Baños, Adelantado Mayor y Merino Mayor de Castilla

ou Juan Martínez de Leiva, Señor de Leiva