The Grinberg Point is the perspector of ABC and the medial triangle of the incentral triangle of ABC. The Grinberg Point is named in honor of the German geometer Darij Grinberg, for his numerous contributions in the Geometry of the Triangle.

Triangle A₁B₁C₁ = Incentral Triangle.
Triangle A₂B₂C₂ = Medial Triangle of the Incentral Triangle.
P = Grinberg Point = Perspector of ABC and Triangle A₂B₂C₂.