I had to do some hunting because I've never been able to keep this straight either. According to
Wikipedia, these were the members of the Jedi Council:
The Phantom MenacePlo Koon
Mace Windu
Yoda
Ki-Adi-Mundi
Saesee Tiin
Yaddle
Even Piell
Oppo Rancisis
Adi Gallia
Yarael Poof
Depa Billaba
Eeth Koth
In the events between the The Phantom Menace and Attack of the Clones, Yarael Poof had sacrificed himself to save Coruscant from the Annoo-Dat terrorist General Ashaar Khorda, and Yaddle had died saving the population of Mawan from a dihexalon gas weapon launched by Sith cultist Granta Omega.
Attack of the ClonesPlo Koon
Mace Windu
Yoda
Ki-Adi-Mundi
Saesee Tiin
Shaak Ti (replacing Yaddle)
Even Piell
Oppo Rancisis
Adi Gallia
Coleman Trebor (replacing Yarael Poof)
Depa Billaba
Eeth Koth
The Clone Wars (22-19 BBY) were a terrible time for the galaxy and the Jedi in particular, as several of their greatest were killed over the course of those three bloody years. Coleman Trebor was killed by Jango Fett during the Battle of Geonosis, and Eeth Koth perished when his gunship was shot down during withdrawal from that world. Depa Billaba fell to the dark side on Haruun Kal, and Oppo Rancisis was murdered on the planet Saleucami by the Dark Jedi Sora Bulq. Towards the end of the war, Adi Gallia was killed by the fearsome Separatist commander General Grievous. Even Piell's fate currently remains unknown.
Revenge of the SithPlo Koon
Mace Windu
Yoda
Ki-Adi-Mundi
Obi-Wan Kenobi(replacing Oppo Rancisis)
Agen Kolar (replacing Eeth Koth)
Anakin Skywalker (replacing Even Piell)
Coleman Kcaj (replacing Depa Billaba)
Saesee Tiin
Kit Fisto (replacing Coleman Trebor)
Stass Allie (replacing Adi Gallia)
Shaak Ti