So Khargurln was Emperor *before* Hunsobo. So you must have been talking about the council when Khargurln was Emperor, meaning Hunsobo was War Master, meaning Eoria wasn't more than Elite (if that).
You made me curious so I went and looked up dates for prominent Empire characters around that time frame. They're listed below in rough chronological order of when each character was promoted to the council (for the first time in the case of Kharghurln).
Waserax joined the council 2007-02-15 and died 2007-07-13. During that period
and that period only:
Khargurln was Emperor from 2007-02-15 until 2007-06-07 when he died/deleted.
Hunsobo was War Master from 2007-02-15 until 2007-06-10, at which point he was promoted to Emperor. He held that position until 2007-07-13 when Waserax age died.
Thos was Dread Lord from 2007-02-24 until 2007-03-31 when he died/deleted.
Ktaar was Shadow Lord from 2007-05-23 until 2007-07-13 when Waserax age died.
In terms of being on the council together, there was no overlap between Waserax and Skiltore / Draktel / Eoria / Vanakoth.
Khargurln / Hunsobo / Waserax / Ktaar on council together: 2007-05-23 to 2007-06-07 (2 weeks)
Hunsobo / Waserax / Ktaar on council together: 2007-05-23 to 2007-07-13 (8 weeks)
Hunsobo / Waserax on council together: 2007-02-15 to 2007-07-13 (5 months)
Still unknown:
1. Who (if anyone) was War Master from 2007-06-10 (when Hunsobo became Emperor) to 2007-07-13 (when Waserax died)?
2. Who (if anyone) was Dread Lord from 2007-02-15 (when Waserax was joined) to 2007-02-24 (when Thos joined)?
3. Who (if anyone) was Dread Lord from 2007-03-31 (when Thos died) to 2007-07-13 (when Waserax died)?
4. Who (if anyone) was Shadow Lord from 2007-02-15 to 2007-05-23 (when Ktaar joined)?
Raw data:
Kharghurln (Black):
Died: 2007-06-07
Sat Jan 6 11:40:20 2007 - Lvl:51 Promoted by Zulghinlour to Echelon 6
Fri Jul 14 21:34:43 2006 - Lvl:51 Demoted by Grurk to Echelon 5
Sun Apr 16 11:39:08 2006 - Lvl:33 Promoted by Grurk to Echelon 6
Sun Apr 16 11:39:01 2006 - Lvl:33 Promoted by Grurk to Echelon 5
Skiltore (Blade):
Died: 2006-09-01
Wed Aug 16 19:31:02 2006 - Lvl:51 Promoted by Grurk to Echelon 6
Thu Jul 27 12:09:49 2006 - Lvl:51 Promoted by Grurk to Echelon 5
Draktel (Divine):
Died: 2007-01-19
Mon Dec 25 14:45:12 2006 - Lvl:51 Demoted by Twist to Echelon 4
Mon Dec 25 14:45:07 2006 - Lvl:51 Demoted by Twist to Echelon 5
Sun Oct 1 15:19:04 2006 - Lvl:51 Promoted by Grurk to Echelon 6
Mon Sep 18 15:33:08 2006 - Lvl:51 Promoted by Grurk to Echelon 5
Hunsobo (Blade):
Died: 2007-08-05
Sun Jun 10 20:51:21 2007 - Lvl:51 Promoted by Zulghinlour to Echelon 6
Sat Dec 9 20:46:19 2006 - Lvl:50 Promoted by Draktel to Echelon 5
Waserax (Divine):
Died: 2007-07-13
Thu Feb 15 13:09:00 2007 - Lvl:51 Promoted by Kharghurln to Echelon 5
Thos (Black):
Died: 2007-03-31
Sat Feb 24 13:18:26 2007 - Lvl:49 Promoted by Kharghurln to Echelon 5
Ktaar (Shadow):
Died: 2007-09-08
Wed May 23 00:00:04 2007 - Lvl:50 Promoted by Kharghurln to Echelon 5
Eoria (Blade):
Died: 2008-02-21
Wed Oct 24 12:25:09 2007 - Lvl:51 Promoted by Zulghinlour to Echelon 6
Fri Sep 14 20:02:32 2007 - Lvl:51 Promoted by Zulghinlour to Echelon 5
Vanakoth (Black):
Died: 2007-11-30
Fri Nov 9 13:30:51 2007 - Lvl:51 Promoted by Eoria to Echelon 5