Here is the full list of all 49 Regalia: Of Men and Monarchs achievements.
Craft 100 items.
Clear 15 Dungeons.
Fish out the legendary item.
Max out Winter's Personal Bond.
Max out Riehl's Personal Bond.
Complete the game. Thanks for playing!
Reach Party Level 20.
Vanquish the Visage of Anguish.
Vanquish the Fomorian Ancient.
Unlock 30 Codex entries.
Max out Mifune's Personal Bond.
Complete 25 Text Adventures.
Carry on the legacy of the fallen hero.
Max out Miri's Personal Bond.
Complete Chapter 6.
Win 50 battles.
Max out Theo's Personal Bond.
Max out Haksun's Personal Bond.
Max out Henrietta's Personal Bond.
Max out Valen's Personal Bond.
Max out Esther's Personal Bond.
Catch 25 fish.
Fish out 10 items.
Craft 25 items.
Max out Levant's Personal Bond.
Max out Grenn's Personal Bond.
Complete Chapter 5.
Max out Gunther's Personal Bond.
Complete Chapter 4.
Max out Shichiroji's Personal Bond.
Max out Griffith's Personal Bond.
Max out Signy's Personal Bond.
Complete 50 challenges.
Successfully placate the three feuding parties.
Win the negotiations by eliminating both Tag and Bink.
Win the negotiations by exposing Tag.
Win the negotiations by exposing Bink.
Complete Chapter 3.
Max out Diego's Personal Bond.
Max out Aliss' Personal Bond.
Max out Baz and Lilka's Personal Bond.
Complete Chapter 2.
Reach Party Level 10.
Complete Chapter 1.
Clear 3 Dungeons.
Complete 5 challenges.
Unlock 5 Codex entries.
Complete a Text Adventure.
Win your first battle.