Florens-Louis Heidsieck (1749–1828) was the founder of the Champagne house Heidsieck & Co from which later Piper-Heidsieck was spun off, and which was the start of the Heidsieck Champagne clan.
Heidsieck was the son of a Lutheran minister from Westphalia, and had moved to Reims to work as a cloth merchant.
In Reims, he went into winemaking and started producing his own wine in 1780.Florens-Louis Heidsieck founded his eponymously named Champagne house in 1785.
He presented his champagne to Queen Marie Antoinette in 1788.
His nephew Christian Heidsieck joined the company in 1800.