The Valois family have been part of French pureblood society for centuries, and their fashion business (well known for quality and high price) has been passed down the generations. There are rumours that the family are related to the old French Royal House of Valois, although this is never denied or confirmed. Unlike many pureblood families, the Valoises are not openly concerned with the presence of muggleborns in the magical world. However, they rarely associate with them (and never marry them) due to the lack of connections to be found there.
Life after Sonora
Louis inherited the Valois fashion business after his father's death, and is currently working with his paternal grandmother to reform both the company and the family image. Louis doesn't agree with the divide between society and non-society, or pureblood and those of other blood, and his reforms reflect this. The Valois brand continues to be high-quality and expensive, but is aimed at all who can afford such a lifestyle, with no judgements. For example, Louis is currently developing a line of muggle clothing.