Tessa Kenway

Tessa Kenway, née Stephenson-Oakley, was the second wife of Edward Kenway, the mother of Haytham Kenway, the grandmother of Ratonhnhaké:ton, and an ancestor of Desmond Miles.

Alongside Edward's daughter Jenny Kenway from his first marriage, Tessa, Edward and Haytham lived in a manor in Queen Anne's Square in London, which through her family connections, she had assisted Edward in purchasing. There, Tessa treated Haytham with unequivocal affection, until the night came where she witnessed him kill an assailant to protect her, during the time where their home was broken into. As a result of this attack, Haytham's father Edward, an Assassin, was killed for a tome that he possessed, which contained encoded information about the First Civilization.

Following this, on seeing her son as a killer, as opposed to the innocent boy he had been prior to the assault, Tessa agreed to let Reginald Birch train Haytham in Europe. On this arrangement, she stayed behind in England to oversee the reconstruction of the Kenway home, but passed away some years later.

Reference

 * Assassin's Creed: Forsaken