Boson de Talleyrand-Périgord
…1832 – 21 February 1910), prince of Sagan (from 1845), duke of Sagan and duke of Talleyrand (from 1898) was a famous French dandy, and the grandson of Dorothea von Biron. He was the son of Napoléon Louis, III. duc de Talleyrand-Périgord (1811-1898) and Anne Louise Charlotte Alix de Montmorency (1810-1858). His paternal…