Across
1
Person who travels to discover new lands
6
Military blockade of a fortified place
7
Formal agreement between nations
8
Armed conflict between nations
9
Medieval land-for-service system
10
Handwritten historical document
11
Union formed for mutual benefit
Down
2
Armed entry into another territory
3
Person owned as property
4
Person who buys and sells goods
5
Deadly epidemic disease
12
Government ruled by a king or queen