Guermantes is a fictional family featured in Marcel Proust's novel series, In Search of Lost Time. They represent the French aristocracy and are known for their wealth, social status, and cultural influence during the late 19th and early 20th centuries. The family's members are often depicted in lavish settings, showcasing their opulent lifestyle. The character Albertine Simonet becomes intertwined with the Guermantes family, highlighting themes of love, jealousy, and social dynamics. The family's interactions with other characters reflect the complexities of French society, particularly the tensions between the aristocracy and the emerging bourgeoisie.