X-shooter spectra of class III YSOs with a SpT ranging from K6 to K2. The spectra have been normalized at 460 nm and an offset has been added for clarity. The spectra have been smoothed to have a resolution of ∼2500 at 750 nm. The observations presented here are displayed in red, while the spectra of MTR13 and MFA17 are indicated in black. We highlight the R510 spectral index feature using the solid blue line. The dashed blue line indicates the slope of the surrounding continuum.