Borghese 3151.svg
System Information
X:Y Coordinates-79.282 : 210.528[e]

The Borghese system was home to at least one habitable world and as of June 3152 was located in the Tamar Pact.[1]

System Description[edit]

The Borghese system is located near the Grunwald and Surcin systems.[2][3]

System History[edit]

The Borghese system was settled during or shortly after the First Exodus from Terra and was a part of the Tamar Pact prior to the formation of the Lyran Commonwealth in the twenty-fourth century.[4]

Political Affiliation[edit]


Jump Point distance9 days[22]
Surface water80[22]
History and Culture
Population10,000,000 (3054)[22]
Government and Infrastructure
Political LeaderCouncil Chairman

Planetary History[edit]

Succession Wars[edit]

The population of Borghese was self-sustaining, providing its own food crops and famed for its exotic fish export known as the "mermaid" fish. The planet's capital was named Houston, which was also its largest city. As of 3054, the majority of the population lived in Houston, while the rest of its population lived in smaller towns and villages. Early settlers had tried to expand their habitats to the oceans of Borghese, however the planet's violent ocean storms made this impractical.[37]

Apocryphal Content Starts

The information after this notice comes from apocryphal sources; the canonicity of such information is uncertain.
Please view the reference page for information regarding their canonicity.

In mid-3026, House Steiner attacked a Cosby BattleMech and Myomer Research Firm facility on Kajikazawa that was home to "Project Cold Snap," an attempt to develop 'Mech Myomer designed to withstand extreme weather conditions. Kurita's Internal Security Force hired a mercenary unit to defend the facility and then retaliate by striking a Defiance Industries armor manufacturing plant on Borghese.[38]

Apocryphal Content Ends


Clan Wolf attacked and conquered Borghese during the second half of January 3070 as one of a series of assaults into Lyran Alliance space, shadowing the path taken by Clan Jade Falcon, who were also using the disruption caused by the Jihad to annex a number of Lyran worlds.[27]

Dark Age[edit]

Clan Wolf-in-Exile mounted a raid upon Borghese's Mettle Archipelago in 3108 to test the newly designed Mongrel BattleMech. The new machine acquitted itself well and the raid ended in victory for the First Wolf Guardians Binary carrying it out.[39]

After Clan Wolf abandoned its Occupation Zone in 3137, Borghese was eventually annexed by Clan Jade Falcon.[2]

IlClan Era[edit]

When the Falcon Occupation Zone collapsed into anarchy following the Battle of Terra, Borghese was left effectively independent. Being a self-sufficient world whose populace was pro-Clan, the warrior caste governor resisted the reborn Tamar Pact's overtures and perished along with the garrison when the Pact's military invaded. While the civilian caste council officially, if grudgingly, accepted the change in Borghese's allegiance, the planet was wracked by constant rioting by Clan-born civilians who demanded a return to Clan rule. A change in governor and the Tamar Pact's respect for their customs helped ease anti-government sentiment, and acceptance of their new nation began to take hold amongst Borghese's population.[40][41][42]

Military Deployment[edit]



  • Twenty-first Arcturan Guards[44]


  • Twenty-first Arcturan Guards[44]


Borghese is a world of vast salt water oceans. The world is dotted with islands, with a single major continent which is smaller than Terra's continent of Australia.[22]

Apocryphal Content Starts

The information after this notice comes from apocryphal sources; the canonicity of such information is uncertain.
Please view the reference page for information regarding their canonicity.

In the MechWarrior 5: Mercenaries High Reward Quest "Project Cold Snap," Borghese is depicted as a glacial ice biome with good visibility.[38]

Apocryphal Content Ends

Planetary Locations[edit]

  • Houston: the planetary capital and largest city, situated on the southern coast.[22][51]
  • Mettle Archipelago: uninhabited island chain in the southern hemisphere[39]

Map Gallery[edit]

Nearby Systems[edit]

Closest 36 systems (33 within 60 light-years)
Distance in light years, closest systems first:
Surcin 17.8 Grunwald 19.6 Qualip 22.3 Crimond 22.8
Pandora 24.8 Kelenfold 25.1 Tomans 30.7 Ballynure 35.9
Arcturus 36.1 Rasalgethi 37.4 Summit 37.6 Garrison 38.5
Orkney 39.2 Graceland 41.4 Matahari 45.0 La Grave 46.1
Fort Loudon 47.0 Blue Diamond 47.6 Odessa 48.4 Lyndon 50.3
Leganes 50.3 Lucianca 50.4 Benfled 50.6 Koniz 51.0
Jabuka 51.6 Quarell 53.5 Meacham 55.6 Montmarault 56.3
Ginestra 56.7 Karbala 57.2 Apostica 58.6 Fatima 59.3
Domain 59.8 Morningside 60.9 Dustball 61.1 Al Hillah 62.6


  1. 1.0 1.1 Tamar Rising, p. 72
  2. 2.0 2.1 2.2 Era Report: 3145, p. 39
  3. 3.0 3.1 Field Manual: 3145, p. VI: "Inner Sphere - 3145"
  4. 4.0 4.1 4.2 Handbook: House Steiner, p. 13
  5. Handbook: House Steiner, p. 25
  6. Historical: Reunification War, p. 159
  7. Era Report: 2750, p. 37
  8. Field Manual: SLDF, p. xi: "Inner Sphere - [2764] Map"
  9. Historical: Liberation of Terra Volume 1, p. 11
  10. First Succession War, pp. 24–25
  11. Handbook: House Steiner, p. 36
  12. Historical: Liberation of Terra Volume 2, pp. 122–123
  13. First Succession War, pp. 112–113
  14. Handbook: House Steiner, p. 40
  15. House Kurita (The Draconis Combine), p. 132
  16. Handbook: House Steiner, p. 56
  17. Handbook: House Steiner, p. 59
  18. Historical: War of 3039, p. 132
  19. Era Report: 3052, p. 11
  20. Handbook: House Steiner, p. 61
  21. Era Report: 3052, p. 23
  22. 22.0 22.1 22.2 22.3 22.4 22.5 22.6 22.7 Main Event, ch. 20
  23. Era Report: 3062, p. 11
  24. Era Report: 3062, p. 29
  25. Handbook: House Steiner, p. 70
  26. Jihad: Final Reckoning, p. 43
  27. 27.0 27.1 Jihad: Final Reckoning, p. 48: "The Jihad in Review"
  28. Jihad Secrets: The Blake Documents, p. 65
  29. Field Report: Clans, p. 23
  30. Jihad: Final Reckoning, p. 63
  31. Field Manual: 3085, p. 127
  32. Era Report: 3145, p. 11
  33. Shattered Fortress, pp. 102–103
  34. Tamar Rising, p. 27
  35. Tamar Rising, poster map
  36. Main Event, ch. 19
  37. Main Event", pp. 196–197: "Jeremiah Rose reviews files regarding Borghese"
  38. 38.0 38.1 MechWarrior 5: Mercenaries, "Project Cold Snap"
  39. 39.0 39.1 Technical Readout: 3145, p. 118
  40. Tamar Rising, p. 27
  41. Tamar Rising, p. 30
  42. Tamar Rising, p. 69
  43. Field Report 2765: LCAF, p. 9: "Regimental Status"
  44. 44.0 44.1 First Succession War, p. 139: "First Succession War Deployment Table - LCAF"
  45. Main Event, ch. 22
  46. Day of Heroes
  47. Field Manual: ComStar, p. 126: "Com Guards Deployment Table"
  48. Mercenaries Supplemental, p. 68: "Mercenary Employment Table"
  49. Field Report: Clans, p. 21: "Clan Wolf Deployment Status"
  50. Field Manual: 3085, p. 126: "Deployment Table - 3085"
  51. The Black Thorns, p. 28