They were murdered together — and now they’ll rest in peace together.

The New Jersey family of four found slaughtered at their burning Colts Neck mansion — allegedly by a relative — were cremated and their remains put in a single urn on display at their funeral Sunday.

The ashes of Keith and Jennifer Caneiro, and their two young children, Jesse and Sophie, were placed in the single blue-and-white marble urn, which bore their names and birth dates, and placed in a position prominence at the sanctuary of the Holmdel Funeral Home during services there. Four red roses signifying the dead were arranged around the urn.

Tears flowed freely outside the New Jersey funeral home, where the four victims of a gruesome quadruple homicide were being memorialized in a wake and funeral.

More than 100 people lined up outside the funeral home to bid farewell to the family — after cops say Keith’s greedy brother Paul murdered them over money at Keith’s house Nov. 20 and set fire to their home to cover his crimes.

Several women dressed in black were seen in a tearful embrace outside as mourners filed past.

Obituaries remembered Keith, 50, as a tech prodigy who started a successful IT business without even a bachelor’s degree, while Jennifer, 45, was known for sharing her “ favorite city” of New York with relatives, whom she took to the Natural History Museum and Rockefeller ice-skating rink.

Young Jesse, 11, was a World War I enthusiast and Lego ace who shared his dad’s penchant for technology.

His kid sister Sophia, who died at just 8 years old, was a kinetic youth who excelled at gymnastics and inherited her mom’s die-hard love of the Yankees, an obituary reads.

Keith’s brother Paul, 51, has been charged with four counts of murder, as well as weapons and arson charges, for the slaying, which officials say was financially motivated. He has claimed he’s not guilty.

He is being held in Monmouth County Jail.

Meanwhile, the Colts Neck mansion, less than a mile from the funeral home, remained charred and empty Sunday, the yard fenced up and two unmarked police cars in the driveway, according to NJ.com.

Photos and drawings of the family were posted on the fence in a makeshift memorial, which also bore a large pink heart on a poster that read “Love you! Forever together.”