Board Thread:The Panopticon/@comment-197.86.143.126-20200606192351/@comment-6032121-20200607112704

Well, sort of, as I have said. Aside from Divided Loyalties which you have successfully argued is hella unreliable, there is the fact that A Brief History of Time Lords treats the Master and the War Chief as different individuals. But it's also presented as an in-universe record written long after the fact, so it could very well be mistaken.