Name: Martha Wayne the 2nd
Birth date: December 16th 1942
Aliases: Robin, Thunderbat
Relatives:
Unnamed birth father
Unnamed birth mother
Billy Baston (birth brother)
Bruce Wayne (adoptive father)
Tomas Wayne Jr. (adoptive uncle)
Kate Kane (adoptive aunt)
Richard Grayson (adoptive brother)
Jason Todd (adoptive brother)
Timothy Drake (adoptive brother)
Damien Wayne (adoptive brother)
Cassandra Cain (adoptive sister)
Powers:
Super strength
Super speed
Flight
Electricity blasts
Near invincibility
Hyper intelligence
Sexual orientation: bisexual
Relationship status: single
History: Born as Mary Batson in 1942 to an unnamed couple. She was dropped off in an orphanage. When Black Adam kidnapped her, he gave the newborn his power turning the new being, created from this, into his soldier. In order to stop her rampage, Billy had to strip her of her powers causing the infant to nearly die. The only way he had to save her was to give her some of his power instead. Having nowhere to live himself and knowing of nowhere safer from Black Adam's clutches, he asks Batman to raise her, as Billy takes off on his own.
Being named Martha Wayne by her new father, she was trained in martial arts as well as training her mind in the most advanced sciences and maths. She was also gaining a love of literature and history. The death of her brother Jason, when she was 6, lead her to attack criminals more violently than she needed to. At age 10, she discovered her powers leading her to assume she was invincible. This misconception was cleared up quickly with her father hitting her in the heel during a sparring match. After discovering this weakness her father taught her the fighting techniques that would protect her heel in battle. At age 13, she became Robin (her costume including reinforced heels) going on many adventures with her father. At age 15, Jason came back as Red Hood starting her to try and save him. At age 16, Talia Al Ghul dropped off her little brother Damien to try and distract her father. Damien, seeing her as a rival attempted to take her out ending with her catching a grenade in her hand and containing the blast. At seeing this, Damien realized she was the superior fighter, and gained a respect for her. Later that year, Talia attempts to take over Gotham with an adult clone of Damian. Upon dismantling the plot they find a 14 year old female clone of Damien in a stasis pod. She is named Cassandra and becomes Martha's adorable gay little sister. Martha often tries to help Cassandra win Stephanie Brown's affections. At age 18, she retired from the Robin Moniker and became Thunderbat.