I don't have final details yet, but I believe the requirements might be altered. A Change Log should offer more details before deployment.
i only hope the Game Design Team like computer games, considering all their thoughtfulness so far it's looking like they hardly ever play any, especially this one they work on... :(
Do we have a fix for this bug yet?
From the Change Log 07/06/16:
* Requirements for "A Gift for a King (Part 3)" have been changed to "Own 50 Knights."