This is an unmissable, story related trophy. Because it's meant to be a secret trophy, I'll put its translation and such in spoiler tags.
*** Spoiler - click to reveal ***TROPHY NAME -------------------- Restoring the Kingdom
TROPHY DESCRIPTION ----- Royal Capital Marche Restored.
This trophy will be acquired much longer after the last story related trophy, unlike most that happen very soon after one another. There's a lot that goes on before it, so I'll just list the most recent events.
You'll be tasked to increase your powers to restore the lost. This requires you to use the winger to land on an island with the holy spritnite column, but you'll need more powerful memories to do it. You'll need to land in Yugebury, in Graccia Southlands. Then the observation deck in the Imperial city, then the ruins you see at the beginning on the game, on the very south continent. Once you get these, and the column restored. Head to the lost capital of Graccia, then restore it. This'll be yours.