Petronilla
queen of Aragon
Also known as: Petronila
Quick Summary
Petronilla, also known as Peronella, was the ruling princess of Aragon from 1137 to 1164. She inherited the throne from her father, Ramiro II, who abdicated in her favor. Petronilla was married to Ramon Berenguer IV, Count of Barcelona, who ruled Aragon alongside her. Their union effectively merged the County of Barcelona with the Kingdom of Aragon, laying the foundation for the Crown of Aragon. Their son, Alfonso II, was the first ruler to officially hold the title of King of Aragon and Count of Barcelona simultaneously.12
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