Subpanel at the top – The X-ray sample of C69 members – dashed, red line – (i.e., possible and probable Collinder 69 members with X-ray detections) based on XMM-Newton data. The dotted and long-dashed – grey – represents previously known Collinder 69 members – probable and possible – with no X-ray (only upper limits). Subpanel at the bottom – We highlight in blue the new probable and possible members identified with detections by XMM-Newton (16 probable and 6 possible new members).