Best-fit modelling resulting from our 1st-phase fit of the TNG/LR-B 2019 spectrum (left). Data are shown as a solid black line along with the full best-fit model in red, and separate models for the various spectral components in different colours (see the legend). A broken power law (dashed black line) has been used to approximate the AGN continuum. Zoom over the spectral window 6250 − 6900 Å around the Hα line (right).