The Heretics, a group of six witches turned vampires, were indeed sired to Lily Salvatore. Lily, being the mother of Damon and Stefan Salvatore, played a significant role in their transformation into vampires back in 1903. She sought to create a family of loyal and powerful vampires, and thus she turned the witches into vampires, forming the group known as the Heretics.
In terms of their imprisonment, the Heretics were kept locked away since 1903, until recently. They were confined in a prison world, a magical dimension created by the Gemini coven to imprison dangerous witches. This prison world served as their containment for over a century, preventing them from wreaking havoc in the real world.
The Heretics’ imprisonment in the prison world was a result of their actions as vampires. They were considered a threat due to their unique abilities, which combined witchcraft with vampirism. Their powers made them incredibly dangerous, and the Gemini coven saw fit to lock them away to protect the world from their potential chaos.
During their time in the prison world, the Heretics formed a close bond, becoming a sort of family to each other. They relied on one another for support and survival, as they were the only vampires present in that dimension. This familial bond became a significant aspect of their characters and their dynamic within the Vampire Diaries storyline.
It is essential to note that while the Heretics were sired to Lily, their loyalty towards her was not unwavering. As the series unfolds, there are instances where some Heretics express their dissatisfaction with Lily’s leadership and seek to assert their own independence. This adds complexity to their relationship with Lily and showcases their individuality as characters.
The Heretics were indeed sired to Lily Salvatore, Damon and Stefan’s mother. They were turned into vampires by her in 1903 and kept imprisoned in a magical dimension known as the prison world. Despite their initial loyalty to Lily, their time in captivity allowed them to form a tight-knit family bond, which played a significant role in their storyline.