In "The Wolf Queen, Book V" It starts off with the date 3E 119 and says Emperor Antiochus ruled for 21 years(3E 98-119). Then it goes one year ahead to 3E 120 and starts to talk about Kintyra II becoming Empress and the Wolf Queen trying to get her son Uriel as the new emperor.
In "The Biography of the Wolf Queen" they say in 3E 114 Kintyra II was killed. Then 7 years later Uriel, The Wolf Queen's son takes the throne. Basically, the Elder Council ruled during this time. It doesn't directly say that but you can assume that.
In the Brief history of the Empire it doesn't exactly say the exact dates when all this went down.
One thing is for sure Uriel takes the throne at 3E 121 and Kinyra only ruled for 1-2 years. They both agree on that. But wtf why do they conflict? Anybody else ever notice that? Or am in the twilight zone and not seeing something?