Lavalette, Count de, French general, born at Paris; condemned to death after the Restoration as an accomplice of Napoleon, he was saved from death by the devotion of his wife, who was found in the prison instead of him on the morning appointed for his execution (1769‒1830).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Lava * La Vallière, Duchesse de