Across
1
Alloy of copper and tin used in early tools
3
Ancient Egyptian stone monument
6
Fortified medieval residence
8
Military blockade of a fortified place
11
Object made by humans from the past
12
Armed conflict between nations
13
Medieval land-for-service system
Down
2
Armed entry into another territory
4
Legislative assembly of a country
5
Ancient empire that conquered much of Europe
7
Sudden overthrow of a government
9
Belonging to a very old period
10
Roman arena fighter