The rank and office of a landgrave or landgravine.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "landgraviate" in a sentence
"In 1469 he bought the landgraviate of Alsace and the countship of Ferrette from the archduke"
"Charles ordered a review at Ensisheim, the official capital of the landgraviate."
"He counted the landgraviate as definitely his by the treaty of St. Omer as Brabant by heritage or Liege by conquest."