The Kingdom of Georgia lasted for several centuries.
England in the Middle Ages concerns the history of England during the medieval period , from the end of the 5th century through to the start of the Early Modern period in 1485 . The Kingdom of Georgia , also known as the Georgian Empire , was a medieval monarchy which emerged in circa 1008 AD . It reached its Golden Age of political and economic strength during the reign of King David IV and Queen Tamar the Great from 11th to 13th centuries .