= Rare Dutch edition. Title-page doubled; map loose; all portraits with mounted manuscript caption in Dutch; 2 mounted clippings at rear. Prince Felix Constantin Alexander Johann Nepomuk of Salm-Salm (25 December 1828 - 18 August 1870) was a Prussian military officer of princely birth and a soldier of fortune. Salm-Salm served in the Schleswig-Holstein Army (Prussian Army), Austrian Army, the Union Army during the American Civil War, the army of Emperor Maximilian in Mexico and thereafter in the Prussian Army. He was killed in action during the Franco-Prussian War. After the American Civil War was over, Salm-Salm offered his services to the Habsburg’s 's Emperor Maximilian I of Mexico, and embarked for Mexico in February, 1866. Maximilian was actively promoting American soldiers to migrate to Mexico after the war to improve relations with the country. Salm-Salm was in an unusual position because he had fought for the Union while most of the Americans who moved to Mexico after the Civil War had fought for the Confederacy. By the summer he was appointed colonel and became the Emperor’s aide-de-camp and chief of household. He was captured at Queretaro along with the emperor but not before he made a brave charge with his hussar cavalry in an attempt to save Maximilian from the surrounding Mexican Republican army under Benito Juarez. Together with the Emperor and his highest-ranking generals Tomas Mejia Camacho and Miguel Miramon he was sentenced to death by firing squad. Thanks to the tireless efforts of his wife (who had also tried to obtain a pardon for the Emperor Maximilian) he was pardoned by Juárez and released from custody in December 1867. During his captivity, he was promoted to the rank of brigadier-general. Soon after, he returned to Europe and re-entered the Prussian Army as major in the 4th Guards Grenadiers regiment. He was killed at Dsaint-Privat-la-Montagne during the Battle of Gravelotte in the Franco-Prussian War. (source; wikipedia).