Across
1
Ancient empire that conquered much of Europe
3
Formal agreement between nations
4
Military conflict or fight
5
Fortified medieval residence
6
Uprising against authority
8
Metal that replaced bronze in tools
9
Armored warrior of medieval times
11
Person who travels to discover new lands
12
Medieval religious military campaign
Down
1
Sudden overthrow of a government
2
Period of ten years
5
Territory controlled by another country
7
Payment made to show submission
10
Long and distinct period of history