Applicants 16 and 17 years old are required to be officially withdrawn from their high school and must have permission from a parent or guardian to be able to take the GED or HiSET high school equivalency exam.
Baron is a title of honour, often hereditary, and ranks as one of the lower titles in the various nobiliary systems of Europe.
A Duke is senior to a Marquis (or marquess), who is senior to an Earl, who is senior to a Baron. They have different robes and coronets. A Count is a foreign word for an Earl, and both their wives are Countesses.