A sister and her two brothers refused to leave their parents as Grenfell Tower burned, choosing instead to die together as a family, according to a report.

Husna Begum, 22, and her brothers, Hanif, 26, and Hamid, 29, told relatives by phone that they decided to stay put as smoke and flames filled the 17th-floor apartment, the Times of London reported.

The British-Bangladeshi siblings remained with their parents, mother Rabeya, who was in her 60s, and father, 82-year-old Kamru Miah.

“Their dad could barely walk anyway. What were they going to do? Abandon him?” their cousin Samir Ahmad, 18, told the outlet.

“Until around 1:45 a.m. [an hour after the blaze started] they could have left their parents, but they didn’t,” Ahmad said.

Hanif sounded calm during their last phone call at 3:10 a.m., Ahmad said.

“He said his time had come, and not to mourn for them, but be happy for them because they would be in a better place,” he said. “Hats off to them. They didn’t show cowardice. They stayed with their mum and dad. Family was so important to them. They lived together and they died together.”

Had the children escaped, Ahmad said, they would have been haunted for the rest of their lives.

“Just think if they had left their parents and made it out. How do you recover from that?” Ahmad said.

“Husna was their only daughter, so it was their chance to have a big wedding. In his old age, all Kamru wanted to do was see his daughter get married,” he said.

Her fiancé — whom she had planned to marry next month with 200 guests in attendance — is distraught, he added.

“He has just been wandering around the hospitals, refusing to go home,” Ahmad said.

One brother, Mohammed Hakim, survived the calamity. The recently married man was in the process of moving out of the apartment and had visited his parents a few hours before the fire began.

The five family members were expected to be remembered in a public prayer ceremony near Grenfell Tower, where 74 other people also lost their lives.

Islamic funeral rites cannot be performed without a body — but prayers in absentia can be held at a family’s discretion.