Across
1
Formal agreement between nations
4
Relating to the Middle Ages
5
Territory controlled by another country
7
Male monarch ruler
9
Practice of establishing foreign colonies
12
Long and distinct period of history
Down
2
Armed entry into another territory
3
Person who travels to discover new lands
6
Large territory under one ruler
8
Medieval religious military campaign
10
Military blockade of a fortified place
11
Deadly epidemic disease