This article is about the planetary system. For other uses, see Porthos (disambiguation).

Porthos 3151.svg
System Information
X:Y Coordinates90.139 : 475.846[e]

The Porthos system was home to at least one habitable world or construct and as of 3145 was located in the Periphery region known as The Barrens.[1][2]

System Description[edit]

Porthos is located near the Santander V and Thule systems.[1][2]

System History[edit]

The Porthos system was colonized by the faction known as the Inheritors[3] and was either colonized during the Third Succession War or became significant enough during this era for Inner Sphere nations to begin recording its location on maps.[4][5][6][7]

Political Affiliation[edit]



Planetary History[edit]

Third Succession War[edit]

Porthos was originally settled by Inheritors from the Elysian Fields.[35][3]

The Draconis Combine had a small garrison defending a depot on the planet on 3024 when pirates led by Helmar Valasek raided the planet with a Union-class DropShip. Locusts, Wasps, and Stingers led a lighting attack and were able to seize the supplies they wanted and escaped off-world.[16]

As of 3025, it was considered to have only "recently" been colonized. This leads to the belief that the world and system were unpopulated prior to the thirty-first century.[35][3]

Clan Invasion[edit]

The system was quickly conquered by Clan Ghost Bear during Operation REVIVAL in September 3049. When the Ghost Bears originally arrived they had expected no resistance, only to find a single warrior standing in their way. Uchi Tikidomo, formerly of the Draconis Combine Mustered Soldiery, who had retired to Porthos where he had planned to live out his days in peace after serving with distinction in the War of 3039. Tikidomo met the Ghost Bears at their landing site near Deson Ranch in his Archer BattleMech and promptly challenged them for control of his defenseless world. The Ghost Bears immediately accepted his challenge, and Star Captain Ian DelVillar of Ourse Keshik's Alpha OmniMech Star won the right to face off in his Nova BattleMech against Tikidomo. While the mismatched fight ended in a predictable fashion, Tikidomo's tenacity in the face of adversity so impressed the Star Captain that he agreed to hire the former warrior as a liaison between the planet's government and their new Clan overlords.[36]

First Combine-Dominion War[edit]

At some time during the First Combine-Dominion War, the Thirteenth Sun Zhang Academy Cadre of the DCMS raided Porthos, one of the few worlds where Clan Ghost Bear had not launched an attack from. While there, the Thirteenth seriously damaged Clan Ghost Bear's Fifth Phalanx before withdrawing.[37]

Dark Age[edit]

The Bears had trouble integrating the system into their Occupation Zone and more problems integrating it into the Ghost Bear Dominion. In the early 3090s, the Bears saw that Clan Hell's Horses was just giving up on some marginal systems, and decided to follow suit. Porthos was handed back to the Inheritors and the Bears withdrew to more complex systems. Porthos later joined with Santander V to form the proto-state known as The Havens.[3]

Military Deployment[edit]




Planetary Locations[edit]

  • Deson Ranch: site of an important battle during Operation Revival[41]


According to an apocryphal source, the inhabited world in the Porthos system is in fact named Porthos-Delta, and is a moon with a breathable atmosphere orbiting a very large gas giant in the system.[42]

Map Gallery[edit]

Nearby Systems[edit]

Closest 20 systems (9 within 60 light-years)
Distance in light years, closest systems first:
Santander 13.4 Thule 21.0 Damian 24.0 Glabach 37.6
Richmond 45.4 Holmsbu 47.1 Constance 47.9 Pinnacle 48.6
Idlewind 57.5 Jarett 61.9 Skallevoll 66.3 Susquehanna 67.2
New Ceylon 71.9 Tovetin 72.8 Trondheim 72.8 Kiruna 73.5
Isfahan 74.7 Ferranil 81.4 Rockland 82.3 Leoben 85.9


  1. 1.0 1.1 1.2 Era Report: 3145, p. 39: "Inner Sphere - [3145] Map"
  2. 2.0 2.1 2.2 Field Manual: 3145, p. VI: "Inner Sphere - [3145] Map"
  3. 3.0 3.1 3.2 3.3 Interstellar Expeditions: Interstellar Players 3, p. 45
  4. 4.0 4.1 Handbook: House Kurita, p. 53: "Draconis Combine after Second Succession War - [2864] Map"
  5. 5.0 5.1 The Periphery, First Edition, pp. 156–157: "Maps of the Periphery - [3025]"
  6. 6.0 6.1 House Kurita (The Draconis Combine), foldout: "Draconis Combine Map - [3025]"
  7. 7.0 7.1 Handbook: House Kurita, p. 64: "Draconis Combine after Third Succession War - [3025] Map"
  8. Handbook: House Kurita, p. 16: "Draconis Combine Founding - [2319] Map"
  9. Handbook: House Kurita, p. 16: "Draconis Combine after Age of War - [2571] Map"
  10. Historical: Reunification War, p. 159: "Inner Sphere - 2596"
  11. Era Report: 2750, p. 37: "Inner Sphere - [2750] Map"
  12. Field Manual: SLDF, p. xi: "Inner Sphere - [2764] Map"
  13. Historical: Liberation of Terra Volume 1, p. 11: "Inner Sphere - [2765] Map"
  14. Historical: Liberation of Terra Volume 2, p. 122: "Inner Sphere - [2822] Map"
  15. Handbook: House Kurita, p. 43: "Draconis Combine after First Succession War - [2822] Map"
  16. 16.0 16.1 Technical Readout: 3025, p. 8: "Battle History"
  17. Handbook: Draconis Combine, p. 66: "Draconis Combine after Fourth Succession War - [3030] Map"
  18. Historical: War of 3039, p. 133: "Inner Sphere - [3040] Map"
  19. Handbook: House Kurita, p. 65: "Draconis Combine after War of 3039 - [3040] Map"
  20. Era Report: 3052, p. 11: "Inner Sphere - [3050] Map"
  21. Era Report: 3052, p. 23: "Inner Sphere - [3052] Map"
  22. Handbook: House Kurita, p. 71: "Draconis Combine after Operation REVIVAL - [3052] Map"
  23. Era Report: 3062, p. 11: "Inner Sphere - [3057] Map"
  24. The Periphery, 2nd Edition, p. 112: "Greater Valkyrate, Oberon Confederation & Elysian Fields"
  25. Era Report: 3062, p. 29: "Inner Sphere - [3063] Map"
  26. Jihad: Final Reckoning, p. 42: "Inner Sphere - [3067] Map
  27. Handbook: House Kurita, p. 74: "Draconis Combine after FedCom Civil War - [3067] Map"
  28. Jihad Secrets: The Blake Documents, p. 64: "Inner Sphere - [3075] Map"
  29. Field Report: Clans, p. 25: "Ghost Bear Dominion & Kungsarmé Clan Nova Cat Deployment Map - [August 3079]"
  30. Field Report: DCMS, p. 21: "Draconis Combine Mustered Soldiery Deployment Map - [August 3079]"
  31. Jihad: Final Reckoning, p. 63: "Inner Sphere - [3081] Map"
  32. Field Manual: 3085, p. vii: "Inner Sphere - [3085] Map"
  33. 33.0 33.1 Interstellar Expeditions: Interstellar Players 3, p. 45: "The Havens"
  34. Era Report: 3145, p. 11: "Inner Sphere - [3135] Map"
  35. 35.0 35.1 The Periphery, p. 127: "Elysian Fields"
  36. Invading Clans, p. 30
  37. Field Manual: Updates, p. 112: "13th Sun Zhang Cadre (Tenacity)"
  38. Objective Raids, p. 33: "Pi Galaxy (PGC)"
  39. Field Manual: Warden Clans, p. 164
  40. Field Manual: Updates, p. 78: "Pi Galaxy"
  41. Invading Clans, p. 30: "Porthos"
  42. Katze unter Bären, p. 248