error during fatamid turn

[Don in the North]

02:15:59.753 [system.rpt] [always] CPU: SSE2
02:15:59.753 [system.rpt] [always] ==== system log start, build date: Aug 3 2007 version bld-medieval2-kingdoms-104 (45562) ===
02:15:59.753 [system.io] [always] mounted pack packs/data_0.pack
02:15:59.753 [system.io] [always] mounted pack packs/data_1.pack
02:15:59.753 [system.io] [always] mounted pack packs/data_2.pack
02:15:59.768 [system.io] [always] mounted pack packs/data_3.pack
02:15:59.768 [system.io] [always] mounted pack packs/data_4.pack
02:15:59.768 [system.io] [always] mounted pack packs/localized.pack
02:17:35.486 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:17:35.574 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:17:35.844 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:17:53.992 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:17:54.945 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:27:46.890 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:27:47.390 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:27:47.480 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:27:47.695 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:28:06.910 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:28:07.365 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:28:07.533 [game.script] [error] Trigger processing error in <King_Employs_Diplomacy>
: IsFactionLeader needs a living character.

when testing <IsFactionLeader> condition
02:28:09.238 [system.rpt] [error] Medieval 2: Total War encountered an unspecified error and will now exit.

has happened twice now, fairly late in game, only on fatamid turn
any one know whats wrong?
turn 185 btw