When England was conquered by the Normans in 1066, it came under the influence of the most progressive and best governed system in Europe. It also brought a connection with the entire intellectual life of the Continent that had been absent in the Anglo-Saxon days. Foreigners came to England to study. English youth attended European universities. The only English Pope in history, Pope Adrian IV was elected in 1154. This can be attributed to Norman influence. On the Continent in the twelfth and thirteenth centuries, there was a renaissance in all learning, especially in legal concepts and writing. In Europe, Irnerius, the Four Doctors and Accursius revived the study of civil law. These established the school of the Glossators (writers of a "gloss" or short description of the case). Gratian systematised canon law. The Lombard "Libri Feudorum" and the French Beaumanoir reduced to some sort of order the customary feudal law of Europe. Ranulf de Glanvill and Bracton did this same thing for England, following the spirit of the Continent.