Across
1
Armed entry into another territory
4
Medieval religious military campaign
5
Medieval land-for-service system
6
Formal agreement between nations
7
Belonging to a very old period
8
Person who travels to discover new lands
10
Deadly epidemic disease
Down
2
Fortified medieval residence
3
Practice of farming and growing food
9
Exchange of goods between peoples
11
Relating to the Middle Ages
12
Legislative body in ancient Rome