Stannis Baratheon at Dragonstone - Dragonstone is the castle that stands upon the eponymous island located in Blackwater Bay. It is the ancestral seat of House Targaryen and the current stronghold of a cadet branch of House Baratheon. The entire castle is dominated by dragon motifs and reliefs.
Got facts False, actually. tommen was the son of cersei and Jaime (spoilers!) so when stannis Baratheon died on the battlefield, slain by brienne of tarth, house Baratheon then became extinct because he'd killed his daughter, and his brothers were dead