Across
1
Ancient empire that conquered much of Europe
3
Fortified medieval residence
4
Military blockade of a fortified place
9
Formal agreement between nations
10
Succession of rulers from same family
11
Long and distinct period of history
12
Ancient Egyptian picture writing
Down
2
Period of ten years
5
Alloy of copper and tin used in early tools
6
Government ruled by a king or queen
7
Military conflict or fight
8
Large territory under one ruler