Shrewsbury Castle is a stronghold guarding the only way into Shrewsbury that was unprotected by the River Severn. It was originally an Anglo-Saxon fortification built out of timber; the current sandstone castle being founded by Roger de Montgomery, Earl of Shrewsbury in c.1070. In 1138 it was unsuccessfully defended by William Fitzalan - a supporter of the Empress Maud - after an attack by the forces of King Stephen. Geo-location: Shrewsbury Castle 52.710943; -2.749479 geotagged geo:lat=52.710943 geo:lon=-2.749479