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Diane and Sebastian
Diane and Sebastian
Real Names: Diane de Poitiers
Sebastian de Poitiers
Status: Estranged

Mother and Son

Length of Relationship:

18 Years


Kingdom of France

First Appearance: Pilot

"Take care my brave son, or you will bleed for a girl who will
never be yours.
Diane de Poitiers

Early life[]

Sebastian and Diane had a very close relationship. He was king of France's first male heir, but was the son of his mistress, and not his wife, Queen Catherine. Diana raised Sebastian with him knowledge that he was his father's favourite. But also with the warning that it could all be taken away, as he was a bastard, and was never legitimized by the King.

Season One[]

Sebastian and Diane have always been close, he heeded his mother's warning when she told him to stay away from the young Queen Mary. She did not wish to see her light of the life & threatened, or getting involved with royal business. [1]

Soon after Diana left court to go to Paris for a couple weeks. While she was gone King Henry took on a new mistress, the Lady Kenna, one of the Ladies-in-Waiting, to Queen Mary. Unbeknownst to both of them, Kenna was trying to get rid of Diana so she could be the King's only mistress. However Diana caught on to the schemes, and made sure to bring herself back into King Henry's life. [2]

Even going so far as to aid Italians in taking over the castle, and get rid of Prince Francis and his brother’s. [3]

However still feeling threatened, Diana wrote to The Catholic Church trying to legitimize Sebastian. However Kenna found out first and warned Catherine. Catherine in turn came to Diana, telling her she had to leave court immediately, or she would inform Henry what she had tried to do. Which would no doubt lead to her and Sebastian's death. Diana left the castle that day, warning Sebastian to follow her. She promised that she would get back in King Henry's good graces soon enough. [4]

Season Two[]

Diane returned to court. Bash at first considers giving his mother some of the land his brother had given him recently, but after realizing that she murdered his infant half sisters, he disowns her and gives her nothing. She lets slip to him that it was Kenna who told Catherine about the plot to legitimize him. [5]


Diane de Poitiers: Take care my brave son, or you will bleed for a girl who will never be yours. [2]

Sebastian: I can’t bare to look at you, much less hanging from a rope! [5]

Historical Notes[]

  • Diane de Poitiers had two daughters, neither were fathered by Henry.
  • At the time of her death, Diane was 66 years old.
  • Diane de Poitiers and King Henry knew each other before he married Catherine. They began their relationship when Henry was 16.
  • Queen Catherine and Diane were cousins. Diane encouraged Henry to share Catherine's bed more often to produce children.

Related Pages[]