A family dispute turned tragic when a Bronx man died after being stabbed by his teenage cousin, according to police sources.

Lloyd Hill, 23, was arguing with his 17-year-old cousin just before 7:30 a.m. Saturday morning when the boy pulled a knife and stabbed him multiple times in the neck and torso, sources said.

It’s unclear what sparked the fatal argument, which took place at Hill’s home in Allerton, police said.

Hill was taken to NYC Health + Hospitals/Jacobi where he was pronounced dead, cops said.

The 17-year-old was arrested at the scene and later charged with 2nd degree murder, manslaughter and criminal possession of a weapon, police said.

He was arraigned at around 11 p.m. Saturday night and remanded to a juvenile detention facility, cops said.