To fill in some early history from TC:
The Red king is about 4000 years old, making his birth/rebirth at around 3000 bc
The White Council moved their headquarters to Edinburgh in the "just under five hundred years" ago, putting it in the mid 1500's
This ones a bit more shaky without more JB clarification, but:
The White Council has been around since pre-roman times, which based on google research puts it before 753 bc if we take pre-roman as the Roman Republic/ Before that there was a roman kingdom, but it was a province of the Etruscans before that (founded most likely around 800bc but maybe as early as 1000 bc as a small trading settlement). The problem is that we know its older than that, but not how much older, unless we want to use the beginning of the Iron Age as the cutoff, which would have been about 1200 bc in that part of the world.