Across
1
Payment made to show submission
3
Armed entry into another territory
5
Military blockade of a fortified place
6
Ancient empire that conquered much of Europe
7
Sudden overthrow of a government
8
Fortified medieval residence
10
Relating to the Middle Ages
11
Ancient Mesoamerican civilization
12
Period of ten years
Down
2
Union formed for mutual benefit
4
Roman arena fighter
5
Legislative body in ancient Rome
9
Territory controlled by another country
13
Government ruled by a king or queen