X-ray luminosity in the 2−10 keV band (L_{2−10 keV}) vs. redshift for XXL-S radio sources detected in at least one X-ray band. The red circles are galaxies classified as AGN according totheir MIR colours (see Sect. 3.3), the blue circles are sources classified as AGN according to their SED fit (see Sect. 3.2), the cyan circles are both MIR and SED AGN, and the black points are all other X-ray detected radio sources.