Across
1
Ancient empire that conquered much of Europe
4
Armed entry into another territory
5
Person who travels to discover new lands
7
Military blockade of a fortified place
11
Freedom from outside control
Down
2
Person owned as property
3
Fundamental law of a nation
6
Period of ten years
8
Relating to the Middle Ages
9
Government elected by the people
10
Armored warrior of medieval times