Relief at Naqsh-e Rostam, Iran, depicting Emperor Valerian's capture by Shapur I in 260 CE.
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Original image by Pierre Mertens. Uploaded by Ibolya Horvath, published on 08 November 2017 under the following license: Creative Commons: Attribution-NonCommercial-NoDerivs. This licence only allows others to download this content and share it with others as long as the author is credited, but they can't change the content in any way or use it commercially.