Rear-seat assembly of a motor vehicle

A rear-seat assembly of a motor vehicle, comprising:

• a backrest,
• a transverse pin for articulation of the backrest to a body of the motor vehicle, and
• a pair of brackets fixed by welding to respective rear wheelhouses of the body of the motor vehicle,
• wherein each of said brackets comprises a fixing plate and a central bracket body, which are constituted by two separate components of sheet metal having thicknesses that are different from one another and are fixed together by welding,
• wherein the fixing plate has a front surface and a rear surface in contact with an inner surface portion of the wheelhouse,
• wherein the central bracket body is substantially C-shaped with a central wall and two side walls, which are bent with respect to the central wall and have respective front edges fixed by welding to the front surface of the fixing plate, and
• wherein the central wall of the central bracket body has an opening for insertion and blocking of one end of the transverse pin that has an internal edge that is not bent, with a thickness equal to the thickness of the central bracket body.