Across
1
Ancient empire that conquered much of Europe
4
Military blockade of a fortified place
5
Sudden overthrow of a government
10
Ancient Egyptian picture writing
Down
2
Armed entry into another territory
3
Fortified medieval residence
6
Male monarch ruler
7
Formal agreement between nations
8
Advanced stage of human society
9
Medieval land-for-service system
11
Military conflict or fight
12
Person who travels to discover new lands