A German teen who asked Google if she and her boyfriend could carry on living in the family home if her parents were dead has been jailed for their murders.

On 23rd January, the district court in Bayreuth sentenced Hannah Schwarz, 17, to nine years and six months in prison after finding her guilty of planning the murders of her parents Stefan Schwarz, 51, and Antje Schwarz, 47.

The court sentenced her boyfriend – identified only as Felix, 19 – to 13 years and six months in prison after ruling that he had stabbed the victims to death.

The incident reportedly happened at the family’s villa on 9th January 2022.

Prior to the killings, Schwarz – from Mistelbach, Germany – is believed to have frequently disobeyed and fought with her parents Antje and Stefan, a paediatrician.

She reportedly told a friend one day after school: “Now I have to go home to the *ssholes, someday I’ll kill them.”

German media reported that her mother had even turned to the youth welfare office in autumn 2021 to take a self-defence course to protect her other three children.

Judge Andrea Deyerling told the court: “She was afraid of her daughter Hannah. Hannah hated her parents, she wanted to see them dead.”

But fearing they would lose their daughter, the parents took in her boyfriend Felix.

But Felix, whom Schwarz had seemingly convinced that her parents beat her, apparently felt the need to ‘protect’ his girlfriend.

One night, after the family had watched a film together, the young couple decided to get rid of Schwarz’s parents once and for all.

Prior to the act, they reportedly typed into Google: “Are you allowed to live alone in your parents’ house at 16 if they are deceased?”

The teen then gave her boyfriend a headlamp and gloves, while he took an eight-centimetre-long blade and headed to the parents’ bedroom.

On the way there, Hannah Schwarz reportedly told him: “You look really sexy!”

Felix first stabbed his girlfriend’s father in the head at around 12.30am, causing him to wake up and try to defend himself.

But he was mercilessly executed with 12 additional stab wounds in the head and nine in the neck before Felix turned his attention to Antje.

Having heard his mother’s screams, Schwarz’s 14-year-old brother woke up and rushed to her aid.

But his sister stood in his way, reportedly saying: “Felix has gone downstairs and is killing our parents.”

The teen then stopped her siblings’ attempts to call emergency services, reportedly telling them: “It’s not that bad. We can all stay in the house. Felix is ​​already 18, he can adopt you.”

The two killers then fled about four kilometres (2.5 miles) before deciding that Felix should turn himself in.

Deyerling said: “He dealt with the consequences of his act, showed guilt and remorse.”

In contrast, she explained, Schwarz was indifferent and denied involvement until the very end.

She added: “Hannah made serious allegations against her parents in the main hearing. She deliberately lied to her boyfriend and recognised his manipulability.

“It was a tragedy that broke out in what seemed like an ideal world.”

At the final hearing, the two defendants accepted the verdicts and were taken away by police.

Media did not reveal who is now looking after the other siblings.