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Related to Old Castile: New Castile
A historical region of north-central Spain that combined with New Castile to the south to form the kingdom of Castile. It was united with Aragon after the marriage of Ferdinand and Isabella (1469).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Placename) a region of N Spain, on the Bay of Biscay: formerly a province. Spanish name: Castilla la Vieja
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a region in N Spain: formerly a province. Spanish, Castilla la Vieja.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.