A Spanish masculine given name, the Spanish equivalent of the English name 'William.'
From Germanic roots 'will' (desire) and 'helm' (helmet/protection), brought to Spain through French 'Guillaume.' Like William, it means 'determined protector' or 'resolute guardian.'
Names tell migration stories—Guillermo being the Spanish version of William shows how the Normans (French-speaking) brought this Germanic name across Europe, and different languages adapted it to sound native to them.
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