Complex sentence: In 1988, the Gürtler family purchased the hotel All rooms and restaurants were redesigned, the interior was adapted to the historical style, and rooms and suites were equipped with rare art treasures.
Split into simpler sentences: In 1988, the Gürtler family purchased the hotel. All of its rooms and restaurants were redesigned, the interior was adapted to its historical style, and its rooms and suites were equipped with rare art treasures.