The foot-washing of the Angelitos Activity · Serón de Nágima, Las Vicarías, Soria Image of Serón de Nágima, not of the place itself. On Maundy Thursday, the commemoration of the Last Supper in Serón includes the washing of the feet of twelve children of the village, known as los Angelitos, one of the most deeply rooted customs of its Semana Santa. Photo: Dgarcia29 (CC BY-SA 3.0) What to see and do in Serón de Nágima