  In this paper we describe observations acquired by satellite instruments
(Hinode/SOT and IRIS) and ground-based telescopes (ROSA@DST) during two
consecutive C7.0 and X1.6 flares occurred in active region NOAA 12205 on 2014
November 7. The analysis of these data show the presence of continuum
enhancements during the evolution of the events, observed both in ROSA images
and in IRIS spectra. Moreover, we analyze the role played by the evolution of
the $\delta$ sunspots of the active region in the flare triggering, indicating
the disappearance of a large portion of penumbra around these sunspots.

Solar and Stellar Astrophysics