A Discovery of Witches - Season 3, Episode 7: Soundtracks

At the end, Matthew and Diana dancing.

Diana creates all Ten Knots, reminiscing of her journey to become the Weaver she was born to be. With the Tenth Knot, Diana creates the Goddess’s Arrow to kill Benjamin for good.

Matthew is incredibly weak from the damage Benjamin has done to him, so Diana, Gallowglass, Miriam, Marcus, and Baldwin take him back to Sept-Tours where Matthew dies & is reborn again as a vampire.

Diana goes to the Congregation and tells them that they all need Daemon blood to survive. In doing so, they - minus Gerbert - abolish the Covenant and pick Agatha Wilson as the new leader.