The definition of a Baron differs depending on whether the Barony is English or Scottish. In Scotland a Baron was a Feudal Baron who owned the land his Barony related to. In England a Baron was the King or Queen’s Tenant in Chief holding his land directly from the King or Queen. The Scottish equivalent of an English Baron is Lord of Parliament in Scotland. A Baron ranks fifth in the peerage below Dukes, Marquesses, Earls and Viscounts. The female version of a Baron is a Baroness.
A Baron’s wife is a Lady, a Baronesses husband is a Lord and all their children are The Honourable.
A Baron is styled Right Honourable and the King or Queen address him as Right trusty And Well Beloved Cousin.