A look into Grisha's memories shows Eren the many secrets his father was hiding, including one which led to his mother's demise.
She's a royal--!
!—إنّها ذات دم ملـ
Sie ist doch vom Blut d…
¡Es de la re…!
¡Es de la re…!
Elle est de sang roy…
Ela é da Família—
Она же коро…