Complex sentence: Today, the Chateau Brissac is still owned by a de Cossé family member, the chateau is open to tours and its luxurious gilded theater hosts the annual Val de Loire festival.
Split into simpler sentences: Today, the Chateau Brissac is still owned by a de Cossé family member. The chateau is open to tours and its luxurious gilded theater hosts the annual Val de Loire festival.