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They're the same unique fortress fortress so you cannot have both in play ever.
The Tabernacle (Pi), Solomon’s Temple (Pa), Solomon’s Temple (RA3), Zerubbabel’s Temple (FF), and Herod’s Temple (Di) are considered the same unique Fortress. You may have no more than one in play (or set aside) at a time.
QuoteThe Tabernacle (Pi), Solomon’s Temple (Pa), Solomon’s Temple (RA3), Zerubbabel’s Temple (FF), and Herod’s Temple (Di) are considered the same unique Fortress. You may have no more than one in play (or set aside) at a time.Source: http://redemption.wikia.com/wiki/Duplicate_Cards