ORIGINS OF THE DYNASTY (600 - 1090)
The first document reporting a member of the family is dated 1115, when Don Martín Díaz de Prado attended with other high-ranking noblemen (es: Ricohombres) to the Royal Council in Oviedo.
Numerous sources link this family to Kings of Asturias and León in 9th century Spain, most notably Rodrigo Méndez Silva, the Bishop of Orense Pedro Seguino, the Marquess of Montebelo and the Count Pêro de Barcelos, son of King Denis of Portugal. According to tradition, the House originated in the second son of King Fruela II of León, c. 900 AD, which makes them direct descendants of Gothic Kings such as King Chindasuinth (es: Chindasvinto) (642 AD)[1].
As shown in the epigraph of Royal Ancestry, the House of Lemavia descends from King Henry II of England (1133 - 1189), King Alfonso VIII (1155 - 1214), Emperor Isaac II Angelos of Byzantium (1156 - 1204), King Philipp von Hohenstaufen of Germany (1177 - 1208), King Fernando III "Saint Ferdinand" (1198 - 1252), King Louis IX of France "Saint Louis" (1215 - 1270), King Alfonso X "the Wise" (1221 - 1284). Several other Royal ancestors come through marriages with the House of Lemos, currently part of the House of Alba.
The Iberian Crusades (Reconquista) halted the Muslim invasions in Europe and saved the Western Civilization from oblivion.
The Battle of Navas de Tolosa (July 16th, 1212) was the largest battle fought in Medieval Europe: 50,000 Crusaders against 300,000 Almohads (right)
[1] Enciclopedia Genealógica y Heráldica García Carraffa, Vol. 72, 101-120