The transfer of the churches to the diocese Historical milestone · Vallesa de la Guareña, La Guareña, Zamora Image of Vallesa de la Guareña, not of the place itself. A papal bull of 1875 transferred to the diocese of Zamora the churches that the Order of Saint John of Jerusalem had held here since the donation of Urraca I in 1116, confirmed by Alfonso VII in 1125. 1875 Photo: David Perez (CC BY 4.0) What to see and do in Vallesa de la Guareña