Information about George is scattered across several books rather than contained in one simple biography. The works do not always agree on dates, which reinforces the warning against treating the conventional chronology as settled. Sarah Davis, Jeremy Johns, and David Abulafia are named as historians whose work offers useful routes into the subject. The method is triangulation: consult multiple specialists, compare where their timelines diverge, and keep confidence proportional to the surviving evidence.
Notable Point · 20:11-21:06
Conflicting dates and a medieval research trail
Conflicting dates across otherwise useful historians show why George's career has to be reconstructed comparatively.