"The violence that you perpetrated on your son was not confined to one day," the judge told Ege as he passed sentence. "I am satisfied that, over three months, you beat him on a number of occasions, often with a wooden pestle. His injuries must have caused him a good deal of pain. In my judgment Yaseen was subjected to prolonged cruelty."
He said the evidence showed that on the day Yaseen died he was attacked and suffered "serious abdominal injuries".
He added: "What was your motive for acting as you did? I am satisfied that, on the day of his death, Yaseen was kept home from school so that he could dedicate himself to his (Koran) studies. On that day Yaseen must have failed in some way because I am satisfied that it was that failure which was the trigger for the beating."
His death was treated as a terrible tragedy in the aftermath of the blaze but it was quickly found he was dead before it was set.
Ege accused husband Yousef Ege, 38, who stood trial with his wife, of being a violent bully who beat her and was their son's real killer. But he was cleared of causing or allowing his son's death at home in Pontcanna, Cardiff, south Wales, by failing to act to prevent it.