On the 6th of December, when at Malaga, Joseph wrote a long letter to General Donkin, concerning the _malheur_ at Castalla, in which we find his knowledge of English so imperfect that he was obliged, after a dozen of lines, to adopt and end it in French; and after this unfortunate defeat we hear no more of him. ALEXANDER O'DONNEL, the third brother, was colonel of a regiment of Spanish infantry, and served with it in the Danish Isles under Romana. Attacked there by overwhelming numbers, they effected their escape in 1808; but on being made captives at Espinosa, they entered the French ranks to the number of 4500, and served in Napoleon's Continental war, until they were all taken prisoners by the Russians on the retreat from Moscow, when they were brought back to Spain in British ships, under the care of Captain Hill of the Royal Navy. One of the Spanish corps which returned after this strange career of military service was the regiment of Don Alexander O'Donnel, which had been fully equipped by the Emperor Alexander in 1812, and for which the daughter of General Betancourt embroidered a pair of colours. It was styled the _Imperial Alexander Regiment_, and under O'Donnel distinguished itself in the national cause till after the disasters of 1823. HENRY O'DONNEL, Conde de Abispal, who, like his brother, had been serving with success and distinction in the battles of the Peninsula, was a brave, reckless, and determined soldier, possessed of military talents of a very high order, together with a heedlessness of his own life and of the lives of others. Passing, with honour to himself, through all the subaltern ranks, he was a colonel of Spanish infantry in 1809, when Blake ordered him to command in the attack upon Sauham's posts near Brunola, where, on the 31st August, he had the mortification of seeing the place retaken, after he had carried it at the point of the bayonet.