[1] She was born approximately 1424 in Seville to Hernán Peraza the Elder and his wife, Inés de las Casas (for whom she was named), lords of the Canary Islands.
[7][9] The year 1454 was significant as the Peraza-Herrera's received from King Enrique IV of Castile the return of the island of Lanzarote to their lordship by way of a court order confirming their ownership.
[10] Inés Peraza participated directly in the conquest of the island of Tenerife, assisting the royal order to the conquering captain Alonso Fernández de Lugo in 1495 with extensive supplies.
[10] In October 1477, Inés and her husband renounced their rights to the islands that had not yet been conquered, transferring them to the Catholic Monarchs in exchange for financial compensation and the title of Count of La Gomera.
[10] In 1482, in the face of Pedro's attempts against the life of his parents, as well as for provoking revolts in the family domain, he was disinherited by Inés, who then favored the second-born Hernán The Younger, giving him control of El Hierro as well.
[10] Following Hernán The Younger's death in La Gomera in 1488, further internal struggles ensued in the family against his ambitious widow Beatriz de Bobadilla (known as “The Huntress”) for control of the islands.
[10] As a result of her tumultuous reign, Inés was the last head of the unified seigneury, though the Peraza family would remain a prominent force in the governing and shaping of the Canary Islands.