Hundreds expected at NSW siblings funeral

Steven Trask
Hundreds are expected at the funeral for the Abdallah siblings killed by an alleged drink-driver

Hundreds of mourners are expected to pack a Sydney church to farewell three siblings killed by an alleged drink-driver while going for ice cream.

Abdallah siblings Sienna, 8, Angelina, 12, and Antony, 13, died at the scene in Oatlands alongside their 11-year-old cousin Veronique Sakr.

The funeral for the Abdallah siblings will be held at the Our Lady of Lebanon Co-Cathedral in Harris Park on Monday morning.

"We are anticipating an overwhelmingly high volume of mourners to attend the celebration of Antony, Angelina, and beautiful Sienna Abdallah," the church wrote on Sunday night.

A funeral service for cousin Veronique Sakr is scheduled for Tuesday morning at the Santa Sabina college chapel in Strathfield.

Samuel William Davidson, 29, was allegedly three times the legal blood alcohol limit when he drove into the children.

He's been charged with 20 offences including four counts of manslaughter and is due to next appear in court in April.