You can find the fictitious version of the Palaise ingame in HKO in Paris of course, on the far left side of the map. Again it is a locked building. My Melody is sleeping inside. To discover the key to the door you will have to talk to Melody's family and do some questing, that may take a while. Melody's Grandpa and Melody's Grandma are standing around not far from the entrance. The fourth building campaign was undertook around 1699 after the war of the League of Augsburg. This time the royal chapel was designed (by Hardouin-Mansart) and finished (by Robert de Cotte) until 1710.