Did Eren ever find out his father's secret? - Quora

Attack on Titan – 79 – Days of Future Past – RABUJOI – An Anime Blog

What did eren show grisha to convince him to give eren his titan? (Before the retcon) : r/titanfolk

Yeager family, Attack on Titan Wiki

My brother ate my dad.” -Zeke Jaeger : r/titanfolk

What could've Eren shown Grisha? : r/ANRime

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

Did Eren's father steal the Founding Titan to bypass the first king's will, allowing Eren to get rid of the world of Titans? - Quora

Braunie Appreciation Zone — Oh yeah- I was talking to momtaku recently about

If Grisha wanted Zeke to stop Eren, why did he still end up giving Eren the founding titan?? : r/titanfolk

Zeke Yeager, Attack on Titan Wiki