He is the father of [Fay](https://anilist.co/character/133214/) and [Grisha Yeager](https://anilist.co/character/62477/), as well as the grandfather of [Eren Yeager](https://anilist.co/character/40882/).

In this post-apocalyptic sci-fi story, humanity has been devastated by the bizarre, giant humanoids known as the Titans. Little is known about where they came from or why they are bent on consuming mankind. Seemingly unintelligent, they have roamed the world for years, killing everyone they see. For the past century, what's left of man has hidden in a giant, three-walled city. People believe their 50-meter-high walls will protect them from the Titans, but the sudden appearance of an immense Titan is about to change everything.
 
(Source: Kodansha USA)
 
Note: Includes two extra chapters.

The battle to retake Wall Maria begins now! With Eren’s new hardening ability, the Scouts are confident they can seal the wall and take back Shiganshina District. If they succeed, Eren can finally unlock the secrets of the basement—and the world. But danger lies in wait as Reiner, Bertholdt, and the Beast Titan have plans of their own. Could this be humanity’s final battle for survival? 
 
(Source: Funimation)

[Profile](http://www.kenproduction.co.jp/talent/member.php?mem=m12)

[Synchronkartei](https://www.synchronkartei.de/sprecher/765/2)

It’s been four years since the Scout Regiment reached the shoreline, and the world looks different now. Things are heating up as the fate of the Scout Regiment—and the people of Paradis—are determined at last. However, Eren is missing. Will he reappear before age-old tensions between Marleyans and Eldians result in the war of all wars? 
 
(Source: Crunchyroll)

The fate of the world hangs in the balance as Eren unleashes the ultimate power of the Titans. With a burning determination to eliminate all who threaten Eldia, he leads an unstoppable army of Colossal Titans towards Marley. Now a motley crew of his former comrades and enemies scramble to halt his deadly mission, the only question is, can they stop him? 
 
(Source: Crunchyroll)

Grisha no Chichi Yeager