Video : Congress of Gniezno: Strengthening ties between Poland and the Western world through significant meeting.

Video Title

Otto III, Holy Roman Emperor

Credit

| Artist: Meister der Reichenauer Schule | Credit: The Yorck Project (2002) 10.000 Meisterwerke der Malerei (DVD-ROM), distributed by DIRECTMEDIA Publishing GmbH. ISBN: 3936122202.

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