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