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Duke Aegir

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Ludwig von Aegir

Medium portrait duke aegir fe16.png
Artwork of Duke Aegir from Three Houses.






Ferdinand (eldest son)



  • Duke Aegir
  • Prime Minister
Voiced by


Duke Ludwig von Aegir[2] (pronounced /ˈaɪɚ/[key]; Japanese: エーギル公 Duke Aegir) is a non-playable character appearing in Fire Emblem: Three Houses. He is a Prime Minister of the Adrestian Empire and the father of Ferdinand.


Duke Aegir is the head of House Aegir of the Adrestian Empire. In 1167, he was tasked with the governance of the Hrym region after a revolt had taken place in it on the same year with cooperation from House Ordelia from the Leicester Alliance. Despite this, four years later, he and the other imperial noble houses started the Insurrection of the Seven in an attempt to seize power from Emperor Ionius IX after the latter was pushing reforms which would consolidate the power to himself[3], a time during which Lord Arundel took Edelgard and fled to Faerghus. After their return in Imperial Year 1174, Duke Aegir collaborated with Arundel and ordered the capture and experimentation of Ionius's scions in an attempt to infuse them with crests and create a perfect emperor he could control.[4] During this period, he also took control of the Hrym territory and imposed heavy taxes upon its people.[5]

In White Clouds, Duke Aegir is put under house arrest by Edelgard once she assumes the imperial throne during a secret visit with her father in Enbarr. Should Byleth be leading the Black Eagles, Edelgard can invite them to the ceremony in which Duke Aegir happens to stumble upon by chance, before he is promptly dismissed and incarcerated by Edelgard on the spot.

In non-Crimson Flower routes, House Aegir is stripped of all its titles after Edelgard declares war on the Church of Seiros, and Lord Arundel takes control of the Hrym territory and imposes even heavier taxes and conscription practices upon it, all in the name of the Prime Minister. Duke Aegir eventually escapes his imprisonment and makes his way into Hrym territory, where he is ultimately intercepted and killed by ruffians.

In the Crimson Flower route, Duke Aegir remains imprisoned while his son Ferdinand fights alongside the Black Eagle Strike Force and seeks to acquire his father's title by merit once the war's over.

Fire Emblem: Three Houses


Duke Aegir is an NPC seen in Chaper 11 during the Black Eagles route and in the paralogue Retribution.

Fire Emblem Heroes


While Duke Aegir does not make a proper appearance in Heroes, he is mentioned by his full name by Ferdinand.

Personality and character

Duke Aegir is an arrogant and greedy man willing to undermine whoever he needs as long it benefits him.

Etymology and other languages

Names, etymology and in other regions
Language Name Definition, etymology and notes

• Duke Aegir
• Ludwig von Aegir

• Used in menus; Ægir is a sea jötunn associated with the ocean in Norse mythology.
• Full name, mentioned only in Heroes. Ludwig is a German name derived from the Germanic name Hludwig, from the words hlud, meaning "famous", and wig, meaning "war".



Duke Aegir


Duque de Aegir

Duke of Aegir


Duc Aegir

Duke Aegir


Herzog Aegir

Duke Aegir


Duca Aegir

Duke Aegir


에기르 공

Duke Aegir

Simplified Chinese


Duke Aegir

Traditional Chinese


Duke Aegir



  1. 1.0 1.1 Credits
  2. "Don't you know who I am? My name is Ludwig von Aegir! You stand in the presence of greatness!" — Ferdinand, quoting his father, in the Forging Bonds event Harmony amid Chaos, Fire Emblem Heroes
  3. "Hanneman: In your father's defense, the emperor was attempting to take power from the Seven Houses. The emperor's reform was an attempt to concentrate power in the hands of the throne. The nobles...put a stop to that." — Hanneman in his and Hubert's C-Support, Fire Emblem: Three Houses
  4. "Edelgard: In order to create a peerless emperor to rule Fódlan, they violated our bodies by cutting open our very flesh. Now here I stand, the fruit of that endeavor: Edelgard von Hresvelg! But that came at too high a price... The others were sacrificed.(...)
    Byleth: Who is to blame?
    Edelgard: The prime minister and his gaggle of nobles. They had the Empire under their thumbs. My father, the emperor, tried to stop him, was futile. My father was nothing but a puppet on a string by then. He was powerless to save us.
    " — Edelgard in her C+ - Support with Byleth, Fire Emblem: Three Houses
  5. "Are you aware of how Duke Aegir was ruling the Hrym territory? He imposed harsh taxes upon the people—much harsher than on his own—making their lives very challenging." — Lysithea in the paralogue Retribution, Fire Emblem: Three Houses
Project Characters.png This article is part of Project Characters, a project focused in writing articles for every character present in the Fire Emblem series.
Fire Emblem: Three Houses
Playable characters Black Eagles BernadettaCasparDorotheaEdelgardFerdinandHubertLinhardtPetra
Blue Lions AnnetteAsheDedueDimitriFelixIngridMercedesSylvain
Golden Deer ClaudeHildaIgnatzLeonieLorenzLysitheaMarianneRaphael
Other AloisAnna*BylethCatherineCyrilFlaynGilbertHannemanJeritza*ManuelaSetethShamir
Ashen Wolves* BalthusConstanceHapiYuri
Non-playable characters Abysskeeper*Duke AegirDuke GerthFlecheGatekeeperGlennHolstIonius IXJeraltJudithLadislavaLambertLord ArundelMonicaNaderPatriciaRandolphRheaRodrigueRufusSeirosSitriSothisTomasTiana
Bosses AcheronAelfric*AloisBaron DominicBaron Ochs*BiasBlaiddydCasparCatherineCharonChilonClaudeCorneliaDaphnelDedueDeath KnightDimitriDominicEdelgardFelixFerdinandFlame EmperorFlaynFraldariusGautierGloucesterGonerilGwendalHubertIngridThe Immaculate OneThe ImmovableJudithKostasKronyaLadislavaLamineLinhardtLonatoLord ArundelLorenzMercedesMetodeyMiklanMysonNaderNemesisOdessePallardóPittacusRandolphRheaRieganRodrigueSetethShamirSolonSylvainThalesWandering BeastThe Wind Caller
Personal weapons and regalia Aegis ShieldAreadbharAsclepiusAthameAxe of UkonvasaraAymrBlutgangCaduceus StaffCirce StaffCrusherFailnaughtFetters of DromiFreikugelThe InexhaustibleLance of RuinLúinOchain ShieldRafail GemScythe of SarielSeiros ShieldSpear of AssalSword of BegaltaSword of MoraltaSword of SeirosSword of the CreatorTathlum BowThunderbrandThyrsusVajra-Mushti
Chapters Part I
White Clouds
Prologue: An Inevitable Encounter • 1: Three Houses • 2: Familiar Scenery • 3: Mutiny in the Mist • 4: The Goddess's Rite of Rebirth • 5: Tower of Black Winds • 6: Rumors of a Reaper • 7: Field of the Eagle and Lion • 8: The Flame in the Darkness • 9: The Cause of Sorrow • 10: Where the Goddess Dwells • 11: Throne of Knowledge • 12: To War Black Eagles, if Byleth sides against EdelgardBlue LionsGolden Deer / Outset of a Power Struggle Black Eagles, if Byleth sides with Edelgard
Part II Silver Snow
Silver Snow
13: Reunion at Dawn • 14: A King Without a Kingdom • 15: Valley of Torment • 16: The Rose-Colored River • 17: The Impregnable Fortress • 18: The Chaos of War • 19: Conclusion of the Crossing Roads • 20: The City Without Light • 21: Following a Dream
Azure Moon
Azure Moon
13: Reunion at Dawn • 14: The Delusional Prince • 15: Valley of Torment • 16: The Rose-Colored River • 17: Blood of the Eagle and Lion • 18: The King's Triumphant Return • 19: The Golden Deer's Plea • 20: The Impregnable Fortress • 21: Our Chosen Paths • 22: Oath of the Dagger
Verdant Wind
Verdant Wind
13: Reunion at Dawn • 14: The Alliance Leader's Ambitions • 15: Valley of Torment • 16: The Rose-Colored River • 17: Blood of the Eagle and Lion • 18: The Golden Scheme • 19: The Chaos of War • 20: Conclusion of the Crossing Roads • 21: The City Without Light • 22: Fódlan's New Dawn
Crimson Flower
Crimson Flower
13: Beyond Escape • 14: The Master Tactician • 15: Tempest of Swords and Shields • 16: Lady of Deceit • 17: Field of Revenge • 18: To the End of a Dream
Paralogues Paralogues Part I A Cursed Relic*An Ocean ViewBlack Market Scheme*Death TollDividing the World Black Eagles, if Byleth sides against EdelgardBlue LionsGolden DeerFalling Short of HeavenThe ForgottenLand of the Golden DeerOil and WaterRumored NuptialsThe Secret Merchant* Blue LionsGolden DeerSword and Shield of SeirosTales of the Red CanyonTrue ChivalryWar for the Weak Blue Lions
Part II Darkness Beneath the Earth Crimson FlowerDividing the World Silver SnowAzure MoonVerdant WindEternal Guardian Silver SnowAzure MoonVerdant WindThe Face Beneath Silver SnowAzure MoonVerdant WindForeign Land and SkyForgotten HeroInsurmountable Crimson FlowerLegend of the LakeRetribution Silver SnowAzure MoonVerdant WindThe Secret Merchant* Crimson FlowerThe Silver Maiden Azure MoonThe Sleeping Sand Legend Verdant WindWeathervanes of Fódlan Azure Moon
Cindered Shadows
(DLC side story)
Cindered Shadows
1: The Fourth House • 2: What Lies Beneath • 3: The Rite of Rising • 4: Danger in the Dark • 5: Betrayal • 6: Return to Me • 7: Wolf Pack
Locations Fódlan (AbyssAdrestiaFaerghusGarreg Mach MonasteryLeicester) • AlmyraBrigidDagdaSreng
Groups, objects and concepts 10 ElitesAshen WolvesBlack EaglesBlue LionsChildren of the GoddessChurch of Seiros (Knights of Seiros) • Crests (Crest Stone) • Divine PulseGolden DeerHeroes' RelicsInsurrection of the SevenMonstersThose who slither in the darkTragedy of DuscurWar of Heroes
Related topics Music LibraryName chartPre-release informationUnused content