| Author research links: |
| Books by Douglas Jackson:
 | "Defender of Rome"
First published in 2011
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 | "Hero of Rome"
First published in 2010
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 | "Claudius"
First published in 2009
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 | "Caligula"
First published in 2008
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 | "Sword of Rome"
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 | "Enemy of Rome"
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