grand duke

noun

the sovereign of a territory called a grand duchy, ranking next below a king.
a son of a czar or of a czar's son.

Origin of grand duke

First recorded in 1685–95

Related formsgrand-du·cal, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for grand duke

Historical Examples of grand duke

Frederick assumed the title of grand-duke on the 5th of September 1856.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2
Various
The grand-duke had come to demand the Princess of Wirtemberg in marriage.
Blackwood's Edinburgh Magazine, Volume 56, Number 348
Various
Her father had been ennobled by the Grand-Duke, and she had been his heiress.
Historic Oddities
Sabine Baring-Gould
It was called 'The Grand-duke's hotel,' and was a smart place.
My Austrian Love
Maxime Provost
He saw the Grand-duke advancing, and holding out his hand in a manner the most gracious.
Coningsby
Benjamin Disraeli

British Dictionary definitions for grand duke

grand duke

noun

a prince or nobleman who rules a territory, state, or principality
a son or a male descendant in the male line of a Russian tsar
a medieval Russian prince who ruled over other princes

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012