Astra
Astra was a vampire that lived in the 9th century. She was a leader in the great rebellion following the first contact war.
She destroyed herself following the deaths of her lovers, Levi and Rowen. It is unknown if she ascended as no entity has claimed to have been her, although those that venerate her say she wouldn't chose immortality over her lovers.
Mental characteristics
Personal history
A half vampire born to a human mother, she was a curious child with the widist mind anyone would meet. She'd take everything at face value and never quesiont anything.
when she was around 8, she was out hunting and was attacked by a wild bore. She lost a lot of blood and was found by conjoined naga twins who knew how vampires heal and decided to let her feed from them. She fed from both of them as they both offered. According to her, their blood 'tastes' different from each other
To repay them, she offered her own blood to seal a blood pact that she will be able to sense whenever they were in danger as repayment so they can be best friends forever. Unfortunately, her powers wouldn't awaken for years and the twins would go missing, leaving Astra with guilt of 'lying' and not being able to save them
She hated her vampire self for years after this for failing her 'Sneks', her favorite nickname for her boys.
After her powers awakened, she would spend years when she grew up rebelling against the humans that believe supernaturals are oddities to be in a cage or killed for simply being monsters.
Sexuality
She is unattracted to anything that looks too human or exactly human like Vampires or Witchs
She's more attracted to the beauty of each supernatural/mythical of those she meets in her journey to build her army.
Education
standard 9th centery education knowelage of herbalism and alchemy.
Morality & Philosophy
You blame me for the madness you create And I wage my war, 'cause either way you burn me at the stake
Personality Characteristics
Motivation
To liberate and free any mythical that is captured following the first contact war

Does your universe's vampires age, or is this some immortal young lady? (Astra brings so many delightful questions)
So half vampires age normally until their 'awakening' when they grow into their vampiric powers and then stop aging after that. It can occur at anytime from a baby to growing old and never having had their full powers awakening. Thanks for the interest!