Church of la Sénia Monument · la Sénia, Montsià, Tarragona The church of la Sénia is found in a town that the Order of Saint John of Jerusalem recognised as such in 1232, granting it settlement charters that same year and in 1235; its name comes from the Arabic saniya, the device for drawing water from wells. Photo: Edso (CC BY-SA 4.0) What to see and do in la Sénia