The Castle theme is one of LEGO’s primary themes first introduced in 1978 and based around medieval life with castles and knights. It is currently the third longest-lived theme in LEGO history. Over the years it saw numerous changes thus introducing various fantasy elements.
Fantasy Era consists of 20 sets that ran from 2007 to 2009. As of today,
7094 King's Castle Siege is the most valuable Fantasy Era set with an estimated new/factory sealed value of $746.
Summary
Castle Fantasy Era The Knight set 5615 was released on December 15, 2007, retailing for $3, it has since been retired. New, unopened sets are valued at $19, used ones can be found for $15.
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