Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
X: -98.28 Y: -245.51 [e]
Tintavel was a small world on the border between the Free Worlds League and the Capellan Confederation near Mansu-ri and Milnerton. It is best known as the site of a terrifying battle, which led to the formulation of the Ares Conventions.
Tintavel was within the Free Worlds League, but was captured by the Capellan Confederation during the Age of War. In 2412 a FWLM force invaded, intending to recapture the planet. The battle raged into urban areas and escalated until both sides employed various weapons of mass destruction, leading to over 300,000 causalities and forced the remaining population to abandon the planet.
The Capellan Chancellor Aleisha Liao recognized that one reason for the escalation of the battle were the only vague rules of engagement of this time. Those rules led to numerous similar situations on other worlds. On her behalf, representatives of all the major powers met on the planet of Ares and agreed on a treaty, known as the Ares Conventions, that defined a set of engagement rules. The intention was to prevent unnecessary loss of life in future conflicts.
- 2271 - No record
- 2366 - Free Worlds League 
- 2412 - Capellan Confederation 
- 2571 - Free Worlds League 
- 2596 - Free Worlds League 
- 2750 - Free Worlds League 
- 2765 - Free Worlds League 
- 2822 - Free Worlds League 
- 2864 - No record 
- 3025 - No record 
- 3030 - No record 
- 3058 - No record 
- 3067 - No record 
- 3130 - No record 
- Handbook: House Liao, p. 17, "Capellan Confederation Founding "
- Era Digest: Age of War, p. 5, "Barbarism and Chivalry"
- Handbook: House Marik, p. 34, "Free Worlds League after First Succession War "
- Handbook: House Marik, p. 38, "Free Worlds League after Second Succession War "
- Handbook: House Marik, p. 16, "Free Worlds League Founding "
- Handbook: House Marik, p. 24, "Free Worlds League after Age of War "
- Historical: Reunification War, p. 159, "Inner Sphere - 2596"
- Era Report: 2750, p. 37, "Inner Sphere - 2750"
- Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
- Handbook: House Marik, p. 42, "Free Worlds League after Third Succession War "
- Handbook: House Marik, p. 51, "Free Worlds League after Fourth Succession War "
- Handbook: House Marik, p. 54, "Free Worlds League after Operation Guerrero "
- Handbook: House Marik, p. 56, "Free Worlds League after FedCom Civil War "
- Map of the Inner Sphere 3130