Age: 7
The figurehead leader of Dekim Barton's Mariemaia Army. The supposedly the daughter of former OZ leader Treize Khushrenada, Mariemaia's blood claim to rulership of the Earth is the energy source for her grandfather Dekim's power grab. Though this precocious and power-hungry child is creepy in her own right, she's really just a puppet of her elders, who's been groomed since infancy as a carrier for the Barton family's dream of world domination.
Z...Z...Z...! Oh! I guess I dozed off there a little...Well, I can say nothing good about Mariemaia. She is a little brat, whom I take joy in seeing get slapped.
Taken from Gundam Official
