QMS diagram with the position of HE 0435−5304 according to the fitted parameters overplotted. The blue shaded area shows the AGNs population (based on the Shen et al. 2011, catalog), while orange, green, and red points show the position of HE 0435−5304 as derived from M1, M2, and SALT spectra, respectively. The points were computed assuming a single Lorentzian component fit in Hβ and continuum + Fe II from model B. The horizontal dashed line splits the population into groups of type A (bottom) and type B (top), while the vertical dashed line divides AGNs into normal (left) and extreme (right). The dotted horizontal line divides population A into NLSy1 (FWHM < 2000 km s⁻¹) and sources with broader lines.