Nicolas-Charles Gabriel Sanson

Nicolas-Charles Gabriel Sanson (ニコラ＝シャルル・ガブリエル・サンソン Nikora Sharuru Gaburieru Sanson) is younger brother of Jean-Baptiste and uncle to Charles.

He used to be the royal executioner of Versailles court and executioner of Reims. He was asked by his mother, Anne-Marte, to help Charles with his execution, however, Nicolas planned to sabotage the execution of his nephew in order to take the title of "Monsieur de Paris."

His plans would have succeeded if Marie hadn't stepped in and helped her brother Charles by giving him advice on how to finish the execution properly. After his plans failed, Nicolas retired from being executioner and became a monk instead.

Appearance
Nicolas is an attractive man with long light colored hair, light eyes. He is usually seen wearing gentle and kind expression. As a monk, his hair is cut short and shaved in the middle in the classical tonsure hairstyle.

As he ages, his facial features will strongly resemble those of his older brother.

Personality
He appears to be a gentle and kind person who cares about his nephew Charles.

However, that is just a mask. He actually harbors intense jealousy towards Charles because he desires to be "Monsieur de Paris" instead of Charles. He even goes as far as to attempt to sabotage Charles's execution to make him look bad and take the title for himself. However, his plans are ruined by young Marie. She steps in and helps her brother finish the execution in order to preserve the family's name and his.

His plan to sabotage the execution of Damien was to get his mother's affection and to become the executioner of Paris, and thus gain the material benefits and prestige that come with it. This shows a greedy and child-like personality. Despite all his flaws, he seems to care about his close ones at least a little bit and has some very basic humanity. Prove of this is that as a child, he confronted his older brother after one of his "training" and travels to see his nephew (evidence of this is that Charles knows his uncles face and is comfortable around him) and agrees with his son to marry Marie.