here is an article that tells everything about Ailyn Vel, or at least its what they say. Again, I don't believe that Boba would decide to have a daughter, but here it is:
Ailyn Vel
From Wookieepedia, the Star Wars Wiki.
Ailyn Vel
Biographical information
Physical description
Species Near-Human (Human/Kiffar)
Gender Female
Hair color Black
Eye color Blue
Chronological and political information
Era(s) Rebellion era, New Republic era
Affiliation Bounty hunter
Ailyn Vel was the daughter of Boba Fett and Sintas Vel.
By the age of sixteen, she had lost both her parents—her father left the family, and her mother later died. She became a very successful bounty hunter, like her father, and devoted many years to hunting her father down, to avenge her mother's death.
She eventually assumed the role of Boba Fett himself, keeping her real identity unknown.
Contents [hide]
1 Biography
2 Behind the scenes
3 Appearances
4 Sources
5 External Links
[edit]Biography
The time and place of Ailyn's birth was unknown, though it was believed that she was born on Concord Dawn somewhere between 16 BBY and 12 BBY, when her father was between 17 and 21. Her mother, Sintas Vel, was a Kiffar bounty hunter, while her father, Boba Fett, was believed to be a Journeyman Protector of Concord Dawn at the time.
For unknown reasons, Ailyn's father walked out on the family while she was still very young. As a result, Ailyn grew to hate her father. She lived with her mother for her child and teenage years.
Tragedy struck Ailyn again on her sixteenth birthday, when her mother was killed in pursuit of a bounty. Sintas had taken the bounty mission for the sole purpose of getting credits to buy a special birthday gift for her daughter. Ailyn was devastated by the loss.
The death of Ailyn's mother fueled the strong hatred she had towards her father, and her ambition in life became to kill Boba, blaming him for the death of her mother.
A holographic image of baby Ailyn with parents Boba Fett and Sintas Vel.Tracking Fett was a difficult task for young Ailyn, so she resorted to becoming a hunt-saboteur in hope of finding Fett in her travels. Unfortunately, her efforts went unrewarded for a long time.
It was not until some years after the reported death of Fett at the Pit of Carkoon that Ailyn felt she could finally move on in life. It was from that point that she began her career as a bounty hunter.
Years later, Ailyn discovered that her father still lived, and so the biggest hunt of her lifetime had resumed. She eventually hunted Fett down in the Extrictarium Nebula. However, on confronting her target, she found a man that was not her father, but was in fact an old clone of Jango Fett known as Alpha-Ø2. Ailyn killed the old ARC clone trooper and took his Mandalorian armor with her, and so her hunt continued.
Ailyn returned to hunting bounties, and on occasion would equip the Mandalorian armor and act as Boba Fett, in order to receive bounties of much larger payouts. She began to truly believe that she was his equal or better.
It wasn't until 15 ABY that Ailyn finally believed her father to be dead (again). She eventually tracked Fett down at Shogun and found evidence of a dead Mandalorian supercommando. She also found Fett's Slave IV and took it as her own, assuming the corpse was that of her father.
From then on she took his identity, taking jobs from Bwahl the Hutt and for Nolaa Tarkona of the Diversity Alliance to find shipping merchant Bornan Thul. She eventually found Thul, discovering what he'd been hiding-the coordinates of a plague storehouse-and then transmitting that data to Tarkona. The Diversity Alliance crumbled in battle with the New Republic.
Ailyn's exploits during the Yuuzhan Vong invasion and beyond are heretofore unknown.
All lies, if you ask me.
Boba: Lord Vader, I bring good news.--Vader: You have captured Solo?--Boba: No.--Vader: Then what is it?--Boba: I just saved 15% on starship insurance by switching to Geiko! {MW}