Isabelle Pladeau, sister of Pierre Karl, dies in car accident

Isabelle Pladeau sister of PierreKarl Pladeau and daughter ofPierre Pladeau was killed in a road accidentSaturday evening in the Laurentians when thevehicle she was travelling in plunged into a lake.

The accident occurred in Saint-Hippolyteat about 5:30 p.m. when the driver was unable to stop the car on a slopedue to the icy road, while trying to access a private entrance on305thAvenue.

The car slid off the road and into Lac de l'Achigan, where the drivermanaged to exitthe vehicle and attempted to rescue Pladeau.

Firefighters and police officers were called to the scene, where they managed to free 55-year-old Pladeau from the vehicle and attemptresuscitation.

Pladeau was pronounceddead when she was taken to hospital.

The driver survived and was also transported tohospital.

Investigators with laSret du Qubec said they will interview the driver to establish in more detail the causeof the fatal accident.

Isabelle Pladeau is the daughter ofQuebecorInc. founderPierrePladeau and sister to the chairman of Hydro-Qubec's board of directors, PierreKarlPladeau.

QuebecorInc. owns Quebec's main tabloid papers and private TV network, along with the Sun Media chain in English Canada.