| A | B |
| William the Conquerer | Became King of England on Christmas Day 1066 |
| common law | a legal system based on customs and court rulings |
| jury | a group of men sworn to speak the truth |
| Kinh John | A clver, cruel, and untrustworth ruler |
| Magna Carta | Important idead that would shape English government |
| due process of law | A clause that protected freed mean from arbitrary arrest and imprisonment |
| habeus corpus | The principle that no person can be helf in prison without first being charged with a specific crime |
| Parliment | Englands legislature |
| Louis IX | Bbecame King of France in 1226 |
| Holy Roman Empire | Ruled vast lands from Germany to Italy |
| Henry IV | Crowned King of Geramny, and later became Roman Emperor |
| Gregory VII | Pope during Henrys ruling |
| lay investiture | a ceremony to present bishops with a ring and a staff |
| Frederick Barbarossa | The Holy Roman Emperor |
| Pope Innocent III | Took office in 1198 as head of the church. |