They claim to be descendants of a French duke.
The order of precedence for titled nobility in Britain is duke, marquis, earl, viscount, baron.
The play revolves round the betrothal of a duke to a doctor's daughter.
Florence's identity and fame rested upon its place as the showpiece of the grand dukes' patronage, taste, and power.
Indeed, the totally uncompromising politics of this duke, in particular, can hardly be explained in any other way.
And tomorrow the duke will be on his way !