The "Baths of Lady María de Padilla" are rainwater tanks beneath the Patio del Crucero. The tanks are named after María de Padilla, the mistress of Peter the Cruel. Supposedly, Peter fell for María and had her husband killed. María resisted his advances and poured boiling oil over her face to disfigure herself to stop Peter's pursuit. She became a nun and moved to a convent afterwards. She is regarded as a symbol of purity in the culture of Seville.