'Isabella I' definitions:

Definition of 'Isabella I'

(from WordNet)
noun
The queen of Castile whose marriage to Ferdinand of Aragon in 1469 marked the beginning of the modern state of Spain; they instituted the Spanish Inquisition in 1478 and sponsored the voyages of Christopher Columbus in 1492 (1451-1504) [syn: Isabella, Queen Isabella, Isabella I, Isabella the Catholic]