Raymond IV of Toulouse sometimes called Raymond of St Gilles was Count of Toulouse, Duke of Narbonne, and Margrave of Provence and one of the leaders of the First Crusade. He was a son of Pons of Toulouse and Almodis de La Marche. He receiv...

The "Wujing Zongyao" (literally "Collection of the Most Important Military Techniques") was the first book in history to record the written formulas for gunpowder solutions containing saltpetre, sulphur, and charcoal, along with many added...

Rodrigo (or Ruy) Díaz de Vivar, nicknamed El Cid Campeador, was a Castilian military and political leader in medieval Spain. Born of the minor nobility, El Cid was educated in the royal Castilian court and became an important general and ad...

Saint Margaret of Scotland, also known as Margaret of Wessex, was an English princess and a Scottish queen. Margaret was sometimes called "The Pearl of Scotland". Born in exile in the Kingdom of Hungary, she was the sister of Edgar Ætheling...

Omar Khayyam was a Persian mathematician, astronomer, philosopher, and poet. He was born in Nishabur, in northeastern Iran, and spent most of his life near the court of the Karakhanid and Seljuq rulers in the period which witnessed the Firs...

Peter the Hermit, French religious leader. In 1095 he was a very successful preacher of the First Crusade, and he led one of its bands. In 1096 he reached Constantinople with his undisciplined followers; when they arrived in Asia Minor, Pet...

William II, the third son of William I of England (William the Conqueror), was King of England from 1087 until 1100, with powers over Normandy, and influence in Scotland. He was less successful in extending control into Wales. William is co...

Bohemond I, Prince of Taranto and Prince of Antioch, was one of the leaders of the First Crusade. The Crusade had no outright military leader, but instead was ruled by a committee of nobles. Bohemond was one of the most important of these l...

Al-Ghazali known as Algazel to the western medieval world, born and died in Tus, in the Khorasan province of Persia (modern day Iran). He was a Muslim theologian, jurist, philosopher, and mystic of Persian origin and remains one of the most...

Baldwin I of Jerusalem, was one of the leaders of the First Crusade, who became the first Count of Edessa and then the second ruler and first titled King of Jerusalem. He was the brother of Godfrey of Bouillon, who was the first ruler of th...

Godfrey of Bouillon was a leader of the First Crusade. He was either the eldest or the second son of Eustace II, Count of Boulogne, and Ida, daughter of Godfrey III, Duke of Lower Lorraine. He was designated by his uncle, Godfrey the Hunchb...

William took seven months to prepare his invasion force, using some 600 transport ships to carry around 7,000 men (including 2,000-3,000 cavalry) across the Channel. On 28 September 1066, with a favourable wind, William landed unopposed at...

The Battle of Stamford Bridge took place at the village of Stamford Bridge, East Riding of Yorkshire, in England on 25 September 1066, between an English army under King Harold Godwinson and an invading Norwegian force led by King Harald Ha...

Peter I was the King of Aragon and Navarre for a decade from 1094 until his death. He was the son and successor of Sancho V Ramírez by his first wife, Isabella of Urgell. He was named in honour of Saint Peter, because of his father's specia...

Henry I was the fourth son of William I of England. He succeeded his elder brother William II as King of England in 1100 and defeated his eldest brother, Robert Curthose, to become Duke of Normandy in 1106. He was called Beauclerc for his s...