[1] During the War of the Pyrenees, he was stationed at Navarra, Guipúzcoa and Aragón, as aide-de-camp of the major general and spent eleven months at Jaca.

[1] Grimarest's 2nd Andalusian Division, now forming part of General Castaños's Army of the Centre, was defeated by Marshal Moncey at Lerín (25 October).

[2] The Spanish colonel took refuge in the castle at Lerín with his troops, all new levies, and consisting of a single Andalusian battalion, the Tiradores de Cadiz, and a few Catalan volunteers.

[1] In 1809 he was appointed major general of Infantry and Cavalry of the Army of La Mancha under the Count of Cartaojal, who commissioned him with the defence of the Puerto del Rey,[1] one of the natural mountain passes to the west of Despeñaperros,[3] in the Sierra Morena that separates Castile-La Mancha, the central part of Spain, from Andalusia, in the south of the peninsula, and whose defiles have always had great military importance.

[4] In July 1809, the Junta Central gave him the command of the Army of the Reserve in Écija, although he was substituted three months later by General Carvajal.

[1] Due to his extremist royalist views, Grimarest was persecuted by the liberals in Seville and confined to barracks at Ibiza, from where he escaped, and was dismissed from the army.

[1] In August 1833, having been involved in a Carlist plot, Grimarest was stripped of honours, salary, employment and decorations and sentenced to eight years' confinement at San Sebastián and then at La Coruña.