In 1799 Charles became aide-de-camp to Sir James Duff, commanding the Limerick district.
In 1963, he was appointed aide-de-camp to the Queen, taking up his new post on 20th May, 1963.
Oregon, who promptly acquired an aide-de-camp and a pair of highly polished leather puttees.
He entered the English army, and in 1811, as aide-de-camp to the duke of Wellington, took part in several campaigns of the Peninsula War.
In 1745 he became aide-de-camp to the duke of Cumberland in Germany, and was present at Fontenoy; in the following year he had command of a regiment at Culloden.