Complex sentence: Sophia Kokosalaki, then at the peak of her fame, was appointed Creative Director of the house and a debut clothing collection was launched for Spring/Summer 2007-the first Vionnet clothing collection in 67 years.
Split into simpler sentences: Sophia Kokosalaki, then at the peak of her fame, was appointed Creative Director of the house. A debut clothing collection was launched for Spring/Summer 2007-the first Vionnet clothing collection in 67 years.