Let's check all these about that Eldia Reconstructionists member around Grisha as TItan appearing!!

Grisha Yeager, Wiki

The Grisha: Shadow and Bone: Book 1

Shadow and Bone: What Are the 3 Orders of the Grisha?

Grisha Kim💎 (@Grigory_Kim_) / X

lil Grisha, Eren y Zeke Attack on titan anime, Attack on titan art, Attack on titan

Grisha on Toyhouse

If Titan users inherit the memories of past users, why didn't Eren learn the truth about the world via Grisha's memories earlier? - Quora

Grisha Attack on titan comic, Attack on titan, Attack on titan anime

Grisha Bruskin, Metamorphoses (1993)

Grisha Bruskin, Note D (1991), Available for Sale