A hinge (1010; 1110) for a roof window with a stationary primary frame having a plurality of frame members including at least two opposing side members, and at least one secondary frame including a sash having a plurality of sash members including at least two opposing side members and optionally an intermediate frame, said hinge being configured to be connected to the primary frame, or to the intermediate frame and to the secondary frame sash to define a hinge axis (α) of the roof window, said hinge (1010; 1110) comprising a frame hinge part (1030; 1130), a sash hinge part (1040; 1140), and a movement supporting assembly comprising guiding means configured to allow the sash hinge part to assume an angle relative to the frame hinge part substantially around said hinge axis (α) during an opening movement from a closed position to an open position and during a closing movement from the open position to the closed position, the guiding means comprising a linkage mechanism including at least two links (1050, 1060; 1150, 1160) providing connection between the sash hinge part and the frame hinge part, each link being connected to at least one of the frame hinge part and the sash hinge part at a joint and connected to each other, the frame hinge part (1030; 1130) comprising a base plate defining a hinge plane substantially perpendicular to the hinge axis (α) of the roof window and the sash hinge part (1040; 1140) comprising a base plate substantially parallel to the base plate of the frame hinge part, wherein the at least two links (1050, 1060; 1150, 1160) of the linkage mechanism are connected to each other in a bearing axle (1055; 1155), that the at least two links comprise a sash link (1050; 1150) providing connection between the bearing axle (1055; 1155) and the frame hinge part (1030; 1130), and a frame link (1060; 1160) providing connection between the bearing axle and the sash hinge part (1040; 1140), and that at least one of the joints between the links and the frame and sash hinge parts comprises a sliding joint (1056, 1062; 1156, 1162) cooperating with a guide track (1036, 1045; 1136, 1145) and at least one other joint of said joints is selected from the group comprising a sliding joint and a hinged joint (1051, 1061; 1151, 1161), characterised in that said at least one guide track comprises at least one curved portion. said hinge (1010; 1110) comprising a frame hinge part (1030; 1130), a sash hinge part (1040; 1140), and a movement supporting assembly comprising guiding means configured to allow the sash hinge part to assume an angle relative to the frame hinge part substantially around said hinge axis (α) during an opening movement from a closed position to an open position and during a closing movement from the open position to the closed position, the guiding means comprising a linkage mechanism including at least two links (1050, 1060; 1150, 1160) providing connection between the sash hinge part and the frame hinge part, each link being connected to at least one of the frame hinge part and the sash hinge part at a joint and connected to each other, the frame hinge part (1030; 1130) comprising a base plate defining a hinge plane substantially perpendicular to the hinge axis (α) of the roof window and the sash hinge part (1040; 1140) comprising a base plate substantially parallel to the base plate of the frame hinge part, wherein the at least two links (1050, 1060; 1150, 1160) of the linkage mechanism are connected to each other in a bearing axle (1055; 1155), that the at least two links comprise a sash link (1050; 1150) providing connection between the bearing axle (1055; 1155) and the frame hinge part (1030; 1130), and a frame link (1060; 1160) providing connection between the bearing axle and the sash hinge part (1040; 1140), and that at least one of the joints between the links and the frame and sash hinge parts comprises a sliding joint (1056, 1062; 1156, 1162) cooperating with a guide track (1036, 1045; 1136, 1145) and at least one other joint of said joints is selected from the group comprising a sliding joint and a hinged joint (1051, 1061; 1151, 1161), characterised in that said at least one guide track comprises at least one curved portion.