The San Gregorio paella Activity · Villaverde de Medina, Tierra de Medina, Valladolid Image of Villaverde de Medina, not of the place itself. From 8 to 11 May the village celebrates San Gregorio with music and a popular paella that comes to hand out more than a thousand portions, the best attended communal meal of the local calendar. Photo: Alberto from Valladolid, España (CC BY-SA 2.0) What to see and do in Villaverde de Medina