A fixation clamp (10) for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements comprises at least one clamping assembly (20, 30) having at least two receptions (71, 72, 73) to accommodate a fixation element. Said clamping assembly (20, 30) comprises at least three receptions (71, 72, 73) wherein at least two receptions have a different size adapted to accommodate a correspondingly sized fixation element (100). The longitudinal axes of said receptions (71, 72, 73) span a polygon.