A path-controlled window lifter of a motor vehicle having a driver (2) which is connected to a window pane (1) of the motor vehicle and can be driven by means of a drive mechanism in order to adjust the window pane (1), and a multi-part base plate (4) which is mounted in the motor vehicle and on which at least three guide paths (51, 52, 61) are formed in order to guide the driver (2) and to adjust the driver (2) along an adjustment path which is formed by the guide paths (51, 52, 61). The base plate (4) is composed of a carrier part (6) and a reinforcement part (5) which are arranged at a distance from one another in the manner of an upper flange and a lower flange of an I-beam, and are permanently connected to one another. The driver (2) is connected via sliding elements (31, 32, 33) to the guide paths (51, 52, 61), which can rotate about the Y axis of the motor vehicle and are mounted so as to be pivotable about an axis which is oriented perpendicularly with respect to the guide paths (51, 52, 61) and is located essentially in the plane of the window pane (1).