The Titan that ate Eren's mom, Carla Yeager, was the Smiling Titan, which was the Pure Titan form of Dina Fritz, Grisha Yeager's first wife and mother of Zeke. In a shocking twist revealed later, Future Eren manipulated events through the Founding Titan's power, guiding the Smiling Titan to eat Carla to provide his younger self the trauma needed to pursue world destruction and fulfill his grand plan, according to sources like Poggers.com and Yahoo.com.
Guys I have a question,🤔 In Attack on Titan, Eren lets the Smiling Titan eat his mom to create the future. But if everything must have a real “first time,” then the future Eren didn't exist in that first timeline. So if his mom had survived, Eren's whole story would've changed.
The "Smiling Titan" is the unofficial name of Dina's Pure Titan that was notable for killing Eren's mother, Carla Yeager, the new wife of her former husband during the invasion of Wall Maria.
During the Fall of Wall Maria, An abnormal Smiling Titan breaches through the Walls and headed straight for the Yeager family's house.
Dina Yeager, known as the "Smiling Titan" and a member of the Fritz royal family, was the first wife of Grisha Yeager and the mother of Zeke Yeager.
The Cart Titan is in no way a weak link, but it can be considered the weakest of the Nine. Held by Pieck Finger for the run of the show, the Cart isn't built for direct combat or known for its overpowering strength.
After Eren is defeated and killed, Armin recalls a conversation that he and Eren had in the Path in which Eren revealed that he commanded a past Dina Fritz with his Founding Titan to ignore a vulnerable Bertholdt since it was not his time to die yet, causing Dina's Titan to head towards Carla.
However, despite knowing the eventual future awaiting the world, and his terror at the vision of Eren enacting the Rumbling, Grisha still decided to give the Attack and Founding Titan to Eren after learning about the death of his second wife Carla, reigniting his hatred for Marley and desire for her to be avenged.
Clash of the Titans arc
Before the Wall Rose invasion, she and the other inhabitants of Ragako village are gassed by a squad of Marleyan soldiers and turned into Pure Titans by Zeke Yeager. Ms. Springer's Titan is deformed, with limbs unable to support her body, leaving her completely immobile.
Dina is the only Pure Titan shown killing a victim before devouring them. Dina is the only Pure Titan to be killed by other Pure Titans. Dina means "judged" or "her judgment" in Hebrew. Dina shares a birthday with Sasha Blouse.
Eren killed his mom by directing the Dina Fritz Titan to eat her. In his conversation with Armin in the final episode, Eren reveals that he was involved in the death of his mother. In this conversation, Eren also revealed more about the Founding Titan's powers.
By 824, Dina Fritz was the last descendant of the royal family still living in the mainland. Dina then joined a rebellious organization but was caught and turned into a Pure Titan. Although the royal bloodline lives on with the Reiss family, the Fritz name is effectively extinct.
Most believed it was the Farmer as the Military Police stated, meanwhile the other half believed Eren was the father. However, in Chapter 139 the theory was debunked and the Farmer was confirmed the father of Historia's baby.
If Dina had eaten Bertholdt, she would've came out of her titan form disoriented, but not unconscious, other Titans might try to eat her but out of pure instinct, she might control the Titans and drive them away (just like how Eren commanded the Titans without knowing how he did it) , she could drive them away because ...
It is said that nobody could surpass Ymir, and that because Ymir died 13 years after awakening her powers, no one was allowed to live beyond that; this phenomenon was known as the "Curse of Ymir."
War for Paradis arc
In the forest, Zeke uses the power of his scream to transform 30 nearby Survey Corps soldiers into Pure Titans. This was possible as these soldiers had previously drunk alcohol laced in his spinal fluid, with military higher-ups having also been served this fluid.
Pure Titan form
After transforming into a Pure Titan, Conny's Pure Titan grew tall enough to reach and attack the Armored Titan's head.
Eren does not have royal blood. To have it you'd have to be descended from the Eldian royal family. Zeke has it through his mother Dina and Historia through the Reiss family.
Immunity to the Founding Titan
The Ackermans are former Subjects of Ymir and could manifest within Paths; however, they were immune to the Founding Titan's ability to alter memories. This led Kenny's grandfather to speculate that they were not Subjects of Ymir as the majority race within the Walls were affected.
Eren's true love, widely considered by fans and supported by the creator, is Mikasa Ackerman, though their relationship is portrayed as tragic and complex, evolving from a sibling-like bond to deep, albeit complicated, romantic love that he struggles to acknowledge due to his grand, world-altering plans. He confesses his feelings in the end, but it's within a tragic context, acknowledging he couldn't bear seeing her with anyone else and seeing a future where they lived happily in an alternate reality.
While Eren changes into a Titan and fights with Reiner on the ground below, Bertholdt remains anchored to the Wall with his ribs. He attacks the Scout Regiment, capturing both the unconscious Ymir and an unnamed Scout Regiment soldier. Bertholdt swallows both of them.
Zeke would threaten Reiner with death if he continued his disobedience and, in the case of Bertholdt, chose to simply cut his losses and left his subordinate to die in order to escape.
Ymir was able to transform herself into the Jaw Titan (顎の巨人 Agito no Kyojin?), a 5-meter Titan. She gained this ability after she ate Marcel, a Warrior from Marley, in the year 845.