Template:On this day - March 25

Íñigo López de Mendoza.

• 931 – The city of Ceuta is occupied by the fleet of the Caliph of Córdoba, Abd al-Rahman III, thus securing Andalusi control of the Strait of Gibraltar.
• 1157 – Birth of Alfonso II, nicknamed "the Chaste" and "the Troubadour", King of Aragon and Count of Barcelona (d. 1196).
• 1458 – Death of Íñigo López de Mendoza, Spanish poet (b. 1398).
• 1500 – Birth of Antón Martín, Spanish religious, successor of Saint John of God (d. 1553).
• 1523 – In Granada (Spain), the first stone of the Cathedral is laid.
• 1555 – In the New Kingdom of Granada (present-day Venezuela), the village of Valencia is founded.
• 1583 – Death of Juan de Garay, Spanish explorer, conquistador and viceregal ruler (b. 1528).
• 1584 – Captain Pedro Sarmiento de Gamboa establishes the colony of Puerto del Hambre on the Strait of Magellan.
• 1615 – In Nueva Andalucía (present-day Paraguay), the city of Encarnación is founded.
• 1789 – In Spain, King Charles IV appoints Francisco de Goya court painter.
• 1793 – The King of Spain declares war on the French Republic.
• 1806 – In the Viceroyalty of New Granada (present-day Venezuela), Francisco de Miranda attempts to land with three ships at Ocumare de la Costa, but is repulsed by the royal forces and has to withdraw to the Island of Trinidad.
• 1808 – Birth of José de Espronceda, Spanish Romantic poet (d. 1842).
• 1839 – In Madrid (Spain), the placing of the obelisk commemorating the Dos de Mayo Uprising is completed.
• 1884 – Birth of Ignacio Barraquer, Spanish ophthalmologist (d. 1965).
• 1910 – Birth of Óscar Castro, Chilean writer and poet (d. 1947).
• 1912 – In Mexico, the Orozquista Plan is drawn up, the formal demand for the broadest and most general social reform of the whole Mexican Revolution.
• 1936 – In Badajoz, more than 60,000 Spanish peasants mobilized by the FNTT occupy the landowners' lands.
• 1972 – In Argentina, the military dictatorship appoints General Alejandro Agustín Lanusse "de facto president".
• 1977 – In Spain, Juan Luis Cebrián (director of the Madrid daily El País) is prosecuted for the offense of advertising contraceptives.
• 1977 – In Argentina, the journalist Rodolfo Walsh is kidnapped after publishing the Open Letter from a Writer to the Military Junta.
• 2014 – Death of Pepe Vásquez, Peruvian singer-songwriter of Afro-Peruvian music.
• 2019 – In Mexico, President Andrés Manuel López Obrador announces the sending of a letter to King Felipe VI of Spain demanding that he apologize to the country's native peoples for the alleged abuses committed by López Obrador's own ancestors during the conquest of Mexico.
• 2023 – Death of "Chabelo", Mexican-American actor, comedian and television presenter, an emblematic figure of Mexican popular culture (b. 1935).
• 2023 – Death of "Tristán", Argentine actor and comedian with a long career in film, theater and television (b. 1936).