She never regained consciousness to explain what happened before she was found Jan. 31, face down and unresponsive in her bathtub.
"It is hard to say goodbye. On Sunday, July 26, Bobbi Kristina Brown made her transition peacefully," said a statement posted to Whitney Houston's Facebook page. "The family thanks everyone for their loving thoughts and prayers. As Bobbi Kristina would say: 'The wind is behind me and the sun is in my face.' "
"She is finally at peace in the arms of God," the Houston family told USA TODAY in a statement. "We want to again thank everyone for their tremendous amount of love and support during these last few months."
Her father, R&B singer Bobby Brown, issued a statement through his lawyer Monday saying his daughter had fought to get well for months but now had taken "her place in heaven."
"Krissy was and is an angel. I am completely numb at this time. My family must find a way to live with her in spirit and honor her memory. Our loss is unimaginable.
"We thank everyone for the prayers for Krissy and our family as we mourn my baby girl."
Bobbi Kristina had spent the last months in two Atlanta hospitals, a medical rehab facility and a hospice, much of the time in an induced coma and on life support.
"We thank everyone for the prayers for Krissy and our family as we mourn my baby girl."
Bobbi Kristina had spent the last months in two Atlanta hospitals, a medical rehab facility and a hospice, much of the time in an induced coma and on life support.
Her Houston family relatives announced last month that she had been transferred to hospice, a move usually reserved for end-of-life care.
"Despite the great medical care at numerous facilities, Bobbi Kristina Brown's condition has continued to deteriorate," said a statement signed by Pat Houston, Bobbi Kristina's aunt, the executor of Whitney's estate. "As of today, she has been moved into hospice care. We thank everyone for their support and prayers. She is in God's hands now."
By the afternoon of June 25, police, and media cars and vans were seen parked outside the hospice as her family, including father Bobby Brown and Pat Houston, gathered by her bedside.
Her death, coming three years after her mother's eerily similar demise, marks a double tragedy, one of the most heartbreaking of the celebrity world.
Krissy, as she was known, was found by her live-in boyfriend, Nick Gordon , and their friend Max Lomas, face down and unconscious in her bathtub at her Roswell, Ga. , home.
Lisa Holland, a spokeswoman for the Roswell Police Department, said Brown was given cardiopulmonary resuscitation until rescuers arrived. A police statement said Gordon "started CPR and a police officer took over lifesaving measures until an ambulance arrived."
Gordon had been barred by her family from Bobbi Kristina's hospital bed over the last six months, and angrily conducted a war of tweets with her family as a result. After falling apart during a TV interview with Dr. Phil, drunkenly weeping about his girlfriend, he went into rehab, then moved to Florida to be with his mother, Michele Gordon.
Gordon released a statement Monday in response to Bobbi Kristina's death through his mother and one of his new lawyers, Jose Baez:
"The passing of Bobbi Kristina is devastating to Nick and our family," Michele Gordon said in the statement. "Nick loved and cared for Krissi deeply, and he has suffered greatly each and every day they've been apart. Nick and our family are in mourning, and we ask that you respect our privacy. Our thoughts and prayers are with both the Houstons and the Browns during this difficult time."
It is still not clear what happened to Bobbi Kristina or why. Police have been investigating the circumstances but have not announced their findings nor charged anyone with anything.
In late June, Fulton County District Attorney Paul Howard said he had the police case file and was reviewing it with "greater interest" given the move to hospice. A spokeswoman for him said Monday the case was still open and under investigation.