Many historical characters missing?
I know this is set in the 1190's (up to at least 1203 as John's nephew Arthur is mentioned as strangled by him in 'The Pretender'), including when John became king, so many events had not yet happened - ie Magna Carta, 1216, but many important characters of the era existed then, but weren't mentioned?
William Marshall - the famous 'Greatest Knight'?
King Philip of France, who plotted with John during Richard's Austrian captivity?
John and Richard's formidable mother, Eleanor of Aquitaine (d.1204)?
John and Richard's sisters, Joan (d.1199) and Eleanor (d.1214)
The script's did mention John's plotting with/against many people, but none of the above were mentioned?