The Mayo of the quintos Activity · Aldeaseca de la Frontera, Tierra de Peñaranda, Salamanca Image of Aldeaseca de la Frontera, not of the place itself. On 15 May, the day of San Isidro Labrador and patron saint of a village of farmers, it is the tradition that the quintos who come of age that year put up the Mayo, a tree raised in the square that announces the patron saint festivities. Photo: 19Tarrestnom65 (CC BY-SA 4.0) What to see and do in Aldeaseca de la Frontera