After the death of Jeanne Lanvin in 1946, her only daughter, Marie-Blanche de Polignac (1897-1958), took over the management of the House of Lanvin. Following Marie-Blanche’s death in 1958, the ownership of the house was passed to a cousin, Yves Lanvin, a fashion industry expert (Nation Master Encyclopedia; Posh Couture, 2011).