Let A'B'C', A"B"C" be the circlecevian triangles of two isogonal points P, P*. Let ta be the common tangent to {AB'B"} and {AC'C"}; define analogously tb, tc. The lines ta, tb, tc concur at a point Q in the circumcircle of ABC.
When P is the circumcenter, Q is the point X(74).
When P is the centroid, Q is the Parry point.