Juan Antonio de Urbiztondo y Eguía

Juan Antonio de Urbiztondo y Eguía (7 January 1803, San Sebastián – 26 April 1857, Madrid) was the marquis of La Solana and a Spanish military officer. In 1814, he joined the Spanish Army as a knight's page, fought against the Trienio Liberal government, and then became the inspector of the Voluntarios Realistas. Historiographers in Madrid mentioned Urbiztondo's involvement in a dispute at the Royal Palace of Madrid involving the Duke of Cádiz, the Duke of Valencia, and Joaqun Osorio y Silva-Bazán (who was killed by Urbiztondo).

In 1833, he was imprisoned in Mérida on suspicion of having a connection to Carlism, but he managed to flee to Portugal.