Across
1
Military blockade of a fortified place
4
Fortified medieval residence
6
Metal that replaced bronze in tools
7
Armed entry into another territory
8
Union formed for mutual benefit
9
Long and distinct period of history
Down
2
Relating to the Middle Ages
3
Formal agreement between nations
5
Government ruled by a king or queen
10
Armored warrior of medieval times
11
Government by the people