Is the ape Titan Eren's dad? - Quora

The EM argument killer. Grisha tells Mikasa is his daughter and

Eren touching Grisha during the Stand Father scene : r/ANRime

Grisha had Zeke at 19 years old. Zeke was raised by teen parents. : r/titanfolk

Eren-Carla is special : r/titanfolk

Manga Spoilers) Is Grisha a bad Father? : r/ShingekiNoKyojin

Eren manipulates Grisha in Japanese sub using English letters/ romaji

How could eren manipulate grisha? I mean he was just seeing grisha's memories, wasn't he? Then how could that happen? (He was not even using founder's powers, zeke had control over that)

Who was the former attack Titan and what was Grish Yeager's relationship with him? What were they doing in season 3? Who are they working for? - Quora

What Grisha saw in Eren's memories vs the Ending - Forums

Grisha referred to Mikasa as his daughter, cool detail I guess. : r/ShingekiNoKyojin