Infante Juan, Count of Barcelona
Infante Juan, Count of Barcelona (Juan Carlos Teresa Silverio Alfonso de Borbón y Battenberg; 20 June 1913 – 1 April 1993), was a claimant to the Spanish throne as Juan III. He was the third son and designated heir of King Alfonso XIII and Victoria Eugenie of Battenberg. His father was replaced by the Second Spanish Republic in 1931.
Source: Wikipedia — Infante Juan, Count of Barcelona (CC BY-SA 4.0)