The Duke served time in prison in the United States of America for fraud.

Duke served in the House from 1990 until 1992, his only public office.

Duke also served as the Fifth Judicial District's commonwealth attorney from 1875 to 1880.

The Duke has served as the President of The Scout Association since 1975.

(The Duke of Wellington had also served as prime minister between 1828 and 1830.)

The Duke of Cambridge served as commander-in-chief for 39 years.

"And, too, since thou hast served their father the Duke so well, he hath become a veritable pillar of support."

The Duke served as a soldier for most of his life.

Duke joined Wal-Mart in 1995, and most recently served as the executive in charge of the company's international operations.

Furthermore, as the same scene is set in 1782, the Duke would have been serving in the Royal Navy.