The sentencing hearing for Moussa Sidimé, 73, began at the Longueuil courthouse Tuesday morning.
According to testimony heard during his 2011 preliminary hearing, he had slapped her twice for not doing a chore in the manner he had instructed.
Sidimé called 911, but first-responders found the girl unconscious on the floor and bleeding from her nose. She died in hospital a few days later.
At his sentencing hearing today, the court heard from Sidimé's other children, who said that putting their elderly father in prison wouldn't do any good.
The sentiment was echoed by the first witness for the defence, a criminologist who said the Sidimé family had no recorded history of family violence.
The defence is asking for a suspended sentence with probation.
A judge is expected to hand down a sentence on May 21.