Mistreat her
Bozoa Royal Palace.
King George was feeling anxious, he never planned to send both of his sons to the war front.
Since it could not be proven that William had planned to frame Richard with his mother, only lady Regina, had been banished. Even till the end she was a good mother and took all the blame. She also said that her daughter had advised her agaist the plan when she come to find out.
So she managed to save Ema. After lady Regina was exiled from the kingdom, King George immediately fixed a date for princess Ema and the boy Baratheon family. He was scared that they will look for a reason to call off the marriage.
Especially since Ema's leg could not be treated. Agatha has long given up on the king trying to protect these two children.
She kept wondering why the man she has loved all her life never look for this type of loophole to protect Ellen in the past. Sometimes she felt he did not just want lady Regina to be too hard on her.