Carlos Guerrero, a fourth-generation Angus cattle breeder and a pivotal figure in Argentina’s agricultural sector, died on March 20, 2026, at the age of 87. His passing has been met with widespread grief within the country’s farming community, marking the end of a direct lineage tracing back to the introduction of the Aberdeen Angus breed to Argentina in 1879.
Guerrero’s life was deeply intertwined with the Charles de Guerrero ranch, located in San Antonio de Areco since 1994. He inherited the estate following his father’s death, taking on the responsibility of continuing a family tradition that began with his great-grandfather, Carlos Francisco Guerrero Cueto, who imported the first Angus cattle – the bull Virtuoso and the heifers Aunt Lee and Cinderella – to Argentina.
Born on July 22, 1938, Guerrero’s early life revolved around the rural landscape. He accompanied his father in daily farm work, cultivating a lifelong passion for livestock and, specifically, the Angus breed. He formally entered the agricultural world at 17, working alongside his father, and dedicated his life to genetic improvement and the preservation of the breed’s legacy.
In 1962, Guerrero married Inés Romero, whom he met at a cattle exhibition. Together, they built a large family, raising seven daughters, 29 grandchildren, and 15 great-grandchildren. His grandson, Carlos “Pepe” Pestalardo, described him as “a great man” and noted the significance of his death as the end of an era for the Guerrero family’s involvement with the Angus breed in Argentina.
Beyond the family ranch, Guerrero was actively involved in the institutional development of the Angus breed in Argentina. He dedicated four decades to the commission of the Argentine Aberdeen Angus Corporation, later becoming the Argentine Angus Association. He served as president of the association for three consecutive terms – 1978-1980, 1980-1982, and 1982-1984 – championing the breed’s advancement and improvement.
His commitment extended to the Sociedad Rural Argentina (SRA), where he participated for over 20 years, serving on the Revising Committee of Accounts, as a titular member, secretary, and director of the Genealogical Records. The SRA expressed its deep sorrow at his passing, acknowledging his “undisputed reference” in Argentine livestock farming and his family’s “symbol of work and excellence” at the Palermo track.
Guerrero’s influence wasn’t limited to cattle breeding. He likewise played a role in the development of Cariló, investing in land projects in the area. Those who knew him remembered his down-to-earth nature, his weekly gatherings with friends at the Jockey Club, and his enjoyment of golf.
In 2015, Guerrero transitioned leadership of the Charles de Guerrero ranch to his grandson, Pestalardo, providing full support and guidance. Pestalardo recounted a moving moment when his grandfather formally announced the change to the entire team, entrusting him with the future of the ranch at the age of 25. Pestalardo described his grandfather as always engaged with the ranch’s operations, even during a recent hospital stay, inquiring about breeding plans and upcoming exhibitions.
Amadeo Derito, president of the Argentine Angus Association, stated Guerrero’s name was synonymous with the breed, honoring a legacy of vision and integrity. The association recently hosted Guerrero at its year-end toast, a final opportunity to share time with colleagues and reaffirm his commitment to the future of Angus cattle in Argentina.
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