Kenny's grandfather was the grandfather of Kenny and Kuchel Ackerman and the great-grandfather of Levi Ackerman. He was one of the few living remnants of the Ackerman bloodline with knowledge about the reasons for the persecution of his clan.
He was a sickly and frail old man, with limp, light-colored, neck length hair. He had weary eyes, a pointed nose, and a mustache that formed into a beard. Due to his health, he wore loose fitting clothes and appeared unable to leave his bed.
In an attempt to protect current and future members of the Ackerman clan, he intended to die without ever telling anyone the secrets of the Ackerman bloodline's previous life by the King's side.
Appearance: He was a sickly and frail old man, with limp, light-colored, neck length hair. He had weary eyes, a pointed nose, and a mustache that formed into a beard.
Personality: In an attempt to protect current and future members of the Ackerman clan, he intended to die without ever telling anyone the secrets of the Ackerman bloodline's previous life by the King's side.
History: On his deathbed, he was visited by his grandson Kenny, who had just finished killing meddling MPs. Baffled at the state the Ackerman clan was in, Kenny questioned his grandfather about what could have caused the royal government to hate them so much.
Relationships: Kenny Ackerman - Kenny was his grandson and their relationship was complicated. Although he seemed to love Kenny, he also rejected what he had been doing with the Military Police, saying how he was the monster of the capital.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.