The Purge of the Timelords (Commander Who)

Purge of the Timelords is an Major Event during the Third Time War. It included the death of billions of Timelords. It lasted for 19 years, until the Timelords were announced exterminated by the Cybermen Empire, and the New Cult of Skaro.

The Remaining Known Timelords:

The Doctor (Possibly)

The Commander

The Captain

The Creator

Ms. Susan

The Master (A.K.A. Missy)