1Albigensians
A dualist heretical group in southern France, believed the physical world was evil.
2Angevin Empire
The empire ruled by Henry II that stretched from Scotland to southern France.
3Anti-Pope
A rival pope elected in opposition to a sitting pope, usually during a political crisis.
4Battle of Bouvines
A 1214 battle where Philip II of France defeated England and its allies, shifting European power.
5Concordat of Worms
An agreement in 1122 that ended the Investiture Controversy by separating church and imperial powers.
6Crusades (1-9 and popular)
A series of religious wars launched to reclaim the Holy Land from Muslim rule.
7Dominicans
Founded the Dominican Order to preach against heresy and emphasize education and teaching.
8Edward I
A crusading English king known for his bravery and leadership during the Third Crusade.
9Eleanor of Aquitaine
One of the most powerful women of the Middle Ages; queen of both France and England and mother to kings.
10El Cid
A Spanish knight and hero of the Reconquista, famous for fighting both with and against Muslim rulers.
11Excommunication
The Church's strongest punishment, cutting a person off from the sacraments and community.
12Franciscans + Poor Clares
These two orders were founded by St. Francis and St. Clare to serve the poor and live without property.
13Fredrick I
Also called Barbarossa, he died on the way to the Third Crusade and symbolized imperial strength.
14Fredrick II
Holy Roman Emperor who challenged the pope's authority, called Stupor Mundi, and was excommunicated multiple times.
15Gothic Architecture
A style of architecture featuring pointed arches, tall spires, and stained-glass windows.
16Henry II
An English king known for legal reforms and his conflict with Thomas a Becket.
17Henry IV
The Holy Roman Emperor who was humiliated by Pope Gregory VII during the Investiture Controversy.
18Heresy
An official church label for beliefs that go against Catholic doctrine.
19Investiture Controversy / Lay Investiture
Conflict between kings and popes over who had the right to appoint bishops.
20King John
Younger brother of Richard I; lost land to France and was forced to sign the Magna Carta.
21Loss of Acre
The final Crusader stronghold in the Holy Land, it fell to Muslim forces in 1291.
22Magna Carta
A charter signed by King John in 1215 that limited royal power and established legal rights.
23Medieval Warming Period
A climate shift during the High Middle Ages that allowed longer growing seasons and population growth.
24Mendicant Orders
Orders like the Franciscans and Dominicans that owned no property and relied on charity.
25Philip IV
A French king who clashed with the pope and helped move the papacy to Avignon.
26Plantagenet Family
The ruling family of England that included Henry II, Richard I, and King John.
27Reconquista
A centuries-long Christian effort to retake Spain from Muslim control.
28Richard the Lion Hearted
Crusading English king known for his bravery during the Third Crusade.
29Romanesque Architecture
A style of architecture with thick walls, rounded arches, and dark interiors.
30Saladin
Muslim general who recaptured Jerusalem and fought against Richard the Lionheart.
31St. Clare
Follower of St. Francis who founded a women's order and lived a life of poverty and devotion.
32St. Dominic
Founded the Dominican Order to preach against heresy and emphasize education and teaching.
33St. Francis
French king who led the 7th and 8th Crusades and was later canonized as a saint.
34St. Louis IX
Founded a religious order focused on poverty and preaching; loved nature and the poor.
35The Inquisition
Church-run courts established to root out and punish heresy.
36The Avignon Papacy
The period (1309-1377) when the papacy was located in southern France instead of Rome.
37Thomas a Becket
The Archbishop of Canterbury murdered in his cathedral after clashing with Henry II.
38Waldensians
A heretical group that rejected Church wealth and hierarchy, emphasizing poverty and Scripture.