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Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)

Chateau neighbouring systems
Chateau neighbouring systems
System information
X:Y Coordinates -75.75:395.45[e]

The Chateau system was home to at least one habitable world or construct and as at 3145 was located in the Clan Hell's Horses Occupation Zone.[1][2]

System Description[edit]

The Chateau system is located near the Csesztreg and New Caledonia systems.[3]

System History[edit]

First contact between the Tamar Pact and the Rim Worlds Republic occured in 2338 near the Chateau system when a trio of Republican ships scouting for potential colony sites strayed across the Tamar border, leading to Tamar Pact forces engaging the Republicans in the belief that they were a raiding party from the Draconis Combine; one of the Republican ships was destroyed, while the other two retreated.[4]

Political Affiliation[edit]

Planetary History[edit]

Third Succession War[edit]

Chateau was one of worlds raided as part of a pattern of diversionary raids launched by the DCMS in 2866 in order to divert Lyran forces from the Federation of Skye. [11]

Clan Invasion[edit]

In March 3050 the planet was invaded by Supernova Command and Trinary First of Clan Wolf's 279th Battle Cluster. Defending the planet were the Tenth Donegal Guards, commanded by Marshal Sara Steiner, along with the First and Second Chateau Mechanized Militia. The AFFC forces gave Clan Wolf it's toughest fight of the first wave, with Marshal Steiner's tactical skills preventing the Wolf warriors from easily overrunning the defenders at Coston Bluffs, Romul and the Hi-5 Corridor. Unfortunately when the militia panicked they compromised the Guards' position, forcing the Marshal to call a retreat. In the end only two 'Mech companies and less than three regiments of conventional forces escaped.[31]


During the Jihad, Clan Hell's Horses launched a invasion of the Clan Wolf holdings in the Inner Sphere, acquiring holdings for their own relocation to Spheroid space. The first wave of attacks captured four worlds; the second wave captured another four, of which Chateau was one. The first wave was launched between the 21st and 28th of February 3071, with the second wave falling somewhere between the end of the first wave and the 7th of April.[23]

Military Deployment[edit]






  • Tenth Donegal Guards RCT[36]






Planetary Locations[edit]

  • Coston Bluffs: site of a notable battle during Operation REVIVAL.[31]
  • Hi-5 Corridor: site of a notable battle during Operation REVIVAL.[31]
  • Romul: site of a notable battle during Operation REVIVAL.[31]


Chateau was evidently an inhabited Tamar Pact world in 2338[4] but doesn't show up on maps of the region at the end of the Age of War,[5][6] suggesting that the planet was abandoned or depopulated during the Age of War and recolonized during the Star League era.

Nearby Systems[edit]

Systems within 60 light-years (distance in light years)
Closest systems first:
Csesztreg 7.7 New Caledonia 19.4 Icar 19.9 Verthandi 20.9
Romulus 21.3 Maxie's Planet 21.5 Harvest 24.4 Persistence 32.4
Seiduts 34.4 Winfield 37.3 Star's End 37.5 Planting 37.8
Kirchbach 38.8 Trell I 39.2 Steelton 40.3 Evciler 43.4
The Edge 43.7 Vantaa 44.0 Twycross 44.4 Kreller 45.4
Lovinac 46.8 Mozirje 49.8 Iron Land 51.7 Ridderkerk 53.1
Toland 53.8 Butler 54.3 Derf 55.1 Liezen 56.9
Rodigo 58.5 Svarstaad 58.5


  1. 1.0 1.1 Era Report: 3145, p. 39, "Inner Sphere Map - [3145]"
  2. 2.0 2.1 Field Manual: 3145, p. VI, "Inner Sphere - 3145"
  3. 3.0 3.1 Era Report: 2750, p. 37, "Inner Sphere - 2750"
  4. 4.0 4.1 4.2 The Periphery, p. 18, "From Rim to Tamar"
  5. 5.0 5.1 Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War [2571] Map"
  6. 6.0 6.1 Historical: Reunification War, p. 159, "Inner Sphere Map [2596]"
  7. Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
  8. Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War [2822] Map"
  9. Historical: Liberation of Terra Volume 2, p. 122-123, "Inner Sphere - 2822"
  10. Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War [2864] Map"
  11. 11.0 11.1 House Kurita (The Draconis Combine), p. 74, "Is War the Natural State of Man?"
  12. Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War [3025] Map"
  13. House Kurita (The Draconis Combine), p. 132, "District and Prefecture Boundaries of Kurita Space"
  14. Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War [3030] Map"
  15. Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 3039 [3040] Map"
  16. Historical: War of 3039, p. 133, "Inner Sphere - 3040"
  17. 17.0 17.1 Era Report: 3052, p. 11, "Inner Sphere - 3050"
  18. Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion [3052] Map"
  19. Era Report: 3062, p. 11, "Inner Sphere Map [3057]"
  20. Era Report: 3062, p. 29, "Inner Sphere Map [3063]"
  21. Handbook: House Steiner, p. 70, "Lyran Alliance after FedCom Civil War [3067] Map"
  22. Jihad: Final Reckoning, p. 43, "Inner Sphere Map - [October 3067]"
  23. 23.0 23.1 Jihad Hot Spots: 3076, p. 15, "Timeline of the Jihad"
  24. Jihad Secrets: The Blake Documents, p. 31, "Clan Occupation Zones [3072] Map"
  25. Jihad Secrets: The Blake Documents, p. 65, "Inner Sphere [3075]"
  26. Field Report: LAAF, p. 21, "Lyran Alliance [3079] Map "
  27. Jihad: Final Reckoning, p. 62, "Inner Sphere Map - [March 3081]"
  28. Field Manual: 3085, p. vii, "Inner Sphere Map - [October 3085]"
  29. Map of the Inner Sphere 3130
  30. Era Report: 3145, p. 11, "Inner Sphere Map - [3135]"
  31. 31.0 31.1 31.2 31.3 Wolf Clan Sourcebook, p. 57, "First Wave"
  32. Field Report 2765: LCAF, p. 20, "York Regulars" - Regimental Status
  33. House Steiner (The Lyran Commonwealth), p. 116, "Unit Deployment Table"
  34. 34.0 34.1 34.2 NAIS The Fourth Succession War Military Atlas Volume 1, p.44, "Operation GÖTTERDÄMMERUNG"
  35. Historical: War of 3039, p. 137, "Deployment Table"
  36. 20 Year Update, p. 25, "Federated Commonwealth Deployment Table"
  37. Objective Raids, p.32
  38. Field Manual: Crusader Clans, p. 158, "Crusader Clans Deployment Table"
  39. Field Report: Clans, p. 13, "Clan Hell's Horses Deployment Status"
  40. Field Manual: 3085, p. 124, "Deployment Table - 3085"
  41. Field Manual: 3145, p. 167, "Clan Force Deployments - Clan Hell's Horses"