Festivities of invierno de Pedrola Activity · Pedrola, Ribera Alta del Ebro, Zaragoza Image of Pedrola, not of the place itself. Pedrola's winter festival is held beside the palacio de los Villahermosa, seat since 1476 of the duchy of the same name and today the focus of a tourist route through its ducal heritage and historic gardens. Photo: Zarateman (CC BY-SA 3.0) What to see and do in Pedrola