Bernard of Clairvaux in the context of "Anacletus II"

Pope Alexander III (c. 1100/1105 – 30 August 1181), born Roland (Italian: Rolando), was head of the Catholic Church and ruler of the Papal States from 7 September 1159 until his death in 1181.

A native of Siena, Alexander became pope after a contested election, but had to spend much of his pontificate outside Rome while several rivals, supported by Holy Roman Emperor Frederick I Barbarossa, claimed the papacy. Alexander rejected Byzantine Emperor Manuel I Komnenos' offer to end the East–West Schism, sanctioned the Northern Crusades, and held the Third Council of the Lateran. He canonized Thomas Becket and Bernard of Clairvaux. The city of Alessandria in Piedmont is named after him.

A reliquary (also referred to as a shrine, chasse, or phylactery) is a container for relics. A portable reliquary, or the room in which one is stored, may also be called a feretory.

Relics may be the purported or actual physical remains of saints, and may comprise bones, pieces of clothing, or some object associated with saints or with other religious figures. The authenticity of any given relic is often a matter of debate; for that reason, some churches require documentation of a relic's provenance.

The Cistercians (/sɪˈstɜːrʃənz/), officially the Order of Cistercians (Latin: (Sacer) Ordo Cisterciensis, abbreviated as OCist or SOCist), are a Catholic religious order of monks and nuns that branched off from the Benedictines and follow the Rule of Saint Benedict, as well as the contributions of the highly influential Bernard of Clairvaux, known as the Latin Rule. They are also known as Bernardines, after Saint Bernard, or as White Monks, in reference to the colour of their cowl, as opposed to the black cowl worn by Benedictines.

The term Cistercian derives from Cistercium, the Latin name for the locale of Cîteaux, near Dijon in eastern France. It was here that a group of Benedictine monks from the monastery of Molesme founded Cîteaux Abbey in 1098. The first three abbots were Robert of Molesme, Alberic of Cîteaux and Stephen Harding. Bernard helped launch a new era when he entered the monastery in the early 1110s with 30 companions. By the end of the 12th century, the order had spread throughout most of Europe.

The siege of Damascus took place between 24 and 28 July 1148, during the Second Crusade. It ended in a crusader defeat and led to the disintegration of the crusade. The two main Christian forces that marched to the Holy Land in response to Pope Eugene III and Bernard of Clairvaux's call for the Second Crusade were led by Kings Louis VII of France and Conrad III of Germany. Both faced disastrous marches across Anatolia in the months that followed, with most of their armies being destroyed. The original focus of the crusade was Edessa (Urfa), but in Jerusalem, the preferred target of King Baldwin III and the Knights Templar was Damascus. At the Council of Acre, magnates from France, Germany, and the Kingdom of Jerusalem decided to divert the crusade to Damascus.

The crusaders decided to attack Damascus from the west, where orchards of Ghouta would provide them with a constant food supply. Having arrived outside the walls of the city, they immediately put it to siege, using wood from the orchards. On 27 July, the crusaders decided to move to the plain on the eastern side of the city, which was less heavily fortified but had much less food and water. Afterwards, the local crusader lords refused to carry on with the siege, and the three kings had no choice but to abandon the city. The entire crusader army retreated back to Jerusalem by 28 July.

Perfect (also known as a Parfait in French or Perfectus in Latin) was the name given by Bernard of Clairvaux to the leaders of the medieval Christian religious movement in southern France and northern Italy commonly referred to as the Cathars. The Perfecti were not clerics in any way, but merely members who had become 'adepts' in the teaching, and whose role was that of aiding other ordinary members achieve the rewards of belief and practice. The term reflects the fact that such a person was seen by the Catholic Church as the "perfect heretic". As "bonhommes" (their term), Perfecti were expected to follow a lifestyle of extreme austerity and renunciation of the world which included abstaining from eating meat and avoiding all sexual contact. They were thus recognized as trans-material (i.e. spiritualized) angels by their followers, the Credentes (Croyant in French, Believers in English). Perfecti were drawn from all walks of life and counted aristocrats, merchants and peasants among their number. Women could also become Perfecti and were known as Parfaites or Perfectae.