Manuel Valentín Pérez de Guzmán y Lasarte (14 February 1863 – 8 January 1920) was a Spanish landowner who served as the president of the Port of Huelva, the Chamber of Commerce, and the Real Sociedad Colombina.

[1][2] In February 1891, he had to sell the property La Cardeñosa in Badajoz to Manuela Basilia Liaño (1850–1909) after the latter submitted to the opinion of three friendly mediators to resolve the conflict of possession that began during the lifetime of her late husband Cecilio de Lora y Castro.

[9] Three years later, in October 1906, a certain Ernesto Riehl Knoll requested from the civil Government the permission to expand Pérez de Guzmán's dock, which was adjacent to the pier of the Vega mill, as well as two pieces of marsh destined for a reservoir of storing wood of great square and length, but such petition was ruled out until Riehl could prove that the dock's owner had agreed with his project.

[3] A few months later, Huelva won the Copa Muñoz against a team made up of English sailors, so he took a picture with his six sons, including the 6-year-old Pedro, all wearing the club's colours.

[12] His youngest son Pedro became a naval officer, an honorary admiral of the Navy, and an illustrious sailor, who founded the Punta Umbría Maritime Club in 1949, which once won the Copa del Rey de vela.

[1][4] His youngest daughter, Maria del Carmen, married José de Toro Buiza, Count of Valdeinfantas and captain of artillery.