commonly believed. His early death in 1506 added the pressures of her father now maneuvering to block her legal birthrights of power and sole rule. He succeeded, and as Regent ordered his daughter confined within the Convent of Santa Clara in 1509. Here she received her son Charles I after his arrival in Spain in 1517 from Flanders. Charles had landed on the Asturian coast in September and it took six weeks for the royal entourage to reach Tordesillas. He had become co-monarch of Castile and Aragon with his mother, after the regent period and Ferdinand II's death in 1519. Charles continued her imprisonment until she died in 1555, after being confined nearly fifty years inside Santa Clara. The fact that Juana remained, on record, the legitimate Queen regnant of Castile and Aragon until her death must have caused Charles at least some disquiet. His chambers at the monastery of Yuste (Cáceres) to which he retired on his abdication of the Spanish and Holy Roman Emperor crowns in 1556, a year after her death in Tordesillas, were and still are hung in black in her memory. The exact windowless rooms of her confinement are unknown, however in one room her little clavichord has been preserved. Plaza Mayor and churches The Plaza Mayor is the historic and attractive central community space framed by the 17th century colonnade and porticos creating the arcade that encircles it. Nearby is the Church of Santa Maria, built from the sixteenth to the eighteenth centuries. It has a monumental baroque sacristy. The town's other landmark churches are San Juan, San Pedro, Santiago, and San Antolín. The massive 15th-century Church of San Antolín is of special interest, containing a museum of religious art collected from churches in the vicinity. The spacious church interior has a single nave, and its most outstanding feature is the sumptuous Alderete Chapel, containing the 1550 alabaster tomb of Don Pedro de Alderete, Commander of the Order of Santiago. There are also two other historic convents besides Santa Clara in Tordesillas — Convento de Carmelo and Convento de San Francisco. Festivals The main feasts in Tordesillas are held in September; the date changes every year. Festivities in honour of 'La Virgen de La Peña' The celebrations are in honour of Our Lady 'La Virgen de la Peña', (Our Lady of the Rock) patron saint of the village and land of Tordesillas. Her hermitage