grand duke

noun

Definition of grand duke 

1 : the sovereign duke of any of various European states

2 : a male descendant of a Russian czar in the male line

Examples of grand duke in a Sentence

Recent Examples on the Web

Lady Milford Haven, the daughter of a Russian grand duke, was married to a Mountbatten, cousin to the king of England. Nancy Bilyeau, Town & Country, "Inside the Custody Battle for 10-Year-Old Heiress Gloria Vanderbilt," 30 Sep. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'grand duke.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of grand duke

1591, in the meaning defined at sense 1

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The first known use of grand duke was in 1591

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