He was born around 1884 in Monforte de Lemos. He was a student at the PP school. Escolapios de Monforte de Lemos. During his youth he also cultivated the drawing.
He graduated in Law from the University of Santiago de Compostela in 1897, and was part of the Military Legal Corps, with fates in Mahón, Palma de Mallorca and Seville (1913). In this Andalusian city he attended the workshop of the painter Manuel Alarcón, where he learned painting and restoration, which led him to authenticate works of art, and to make the catalog of some collections of individuals, both Spanish and foreign. He was a member of the Royal Academy of Fine Arts of San Fernando in Madrid, being proposed in 1934 to fill the vacancy produced in the Painting Section by the death of José Ramón Mélida Alinari, as an art critic. He entered on September 21, 1939.
He was a contributor to periodicals such as ABC and Blanco y Negro. Méndez Casal, who was an academic at the Royal Academy of Fine Arts of San Fernando, 2 died in Madrid on January 14, 1940.1 He has a dedicated street in his hometown.