The Domesday Book is a great land survey from 1086, commissioned by William the Conqueror to assess the extent of the land and resources being owned in England at the time, and the extent of the taxes he could raise. The information collect...

Saint Bernard of Clairvaux was a French abbot and the primary builder of the reforming Cistercian monastic order. "The voice of conscience, the dominating figure in the Catholic Church from 1125 to 1153", his authority helped to end the sch...

William of Malmesbury was the foremost English historian of the 12th century. C. Warren Hollister so ranks him among the most talented generation of writers of history since Bede, "a gifted historical scholar and an omnivorous reader, impre...

Roger II was King of Sicily, son of Roger I of Sicily and successor to his brother Simon. He began his rule as Count of Sicily in 1105, later became Duke of Apulia and Calabria (1127), then King of Sicily (1130). It is Roger II's distinctio...

The Crusades were a series of religiously-sanctioned military campaigns waged by much of Latin Christian Europe, particularly the Franks of France and the Holy Roman Empire. The specific crusades to restore Christian control of the Holy Lan...

Stephen, often referred to as Stephen of Blois, was a grandson of William the Conqueror. He was King of England from 1135 to his death, and also the Count of Boulogne jure uxoris. His reign was marked by civil war with his cousin and rival...

The Siege of Antioch took place during the First Crusade in 1097 and 1098. The first siege, by the crusaders against the Muslim-held city, lasted from 21 October 1097 to 2 June 1098. Antioch lay on the crusaders' route to Palestine, and ant...

Hildegard of Bingen, also known as Saint Hildegard and the Sibyl of the Rhine, was a German Benedictine abbess, writer, composer, philosopher, Christian mystic, visionary, and polymath. She is one of the best-known composers of sacred monop...

In the early 11th century, the Egyptian Fatimid Caliph Al-Hakim bi-Amr Allah ordered the destruction of all churches and synagogues in Jerusalem. Reports of this were one cause of the First Crusade, which marched off from Europe to the area...

The Kingdom of Jerusalem was a Christian kingdom established in the Levant in 1099 after the First Crusade. It lasted less than two hundred years, until 1291 when the last remaining outpost, Acre, was destroyed by the Mamluks. At first the...

Muhammed al-Idrisi, was an Arab Muslim geographer, cartographer and egyptologist who for some time lived in Palermo, Sicily at the court of King Roger II. Muhammed al-Idrisi was born in Ceuta then belonging to the Almoravids. He created the...

Pope Gregory VIII died in Pisa on December 17, 1187, of a fever, after holding the Papacy for only 57 days. On October 21, 1187, the day after the death of Pope Urban III, Alberto di Morra was elected pope and took the name Gregory VIII, in...

Empress Matilda, also known as Matilda of England or Maude, was the daughter and heir of King Henry I of England. Matilda and her younger brother, William Adelin, were the only legitimate children of King Henry to survive to adulthood. Will...

Emperor Gaozong, born Zhao Gou, was the tenth emperor of the Song Dynasty of China, and the first emperor of the Southern Song. He reigned from 1127 to 1162. He fled south after the Jurchens overran Kaifeng hence the beginning of the Southe...

Enrico Dandolo was the 41st Doge of Venice from 1195 until his death. Remembered for his blindness, piety, longevity, and shrewdness, he is infamous for his role in the Fourth Crusade which he, at age ninety, directed against the Byzantine...