Louis Marie Pantaleon Costa
Louie Marie Panteleon Costa, Marquis de Beau-Regard (1806-1864) was a French statesman, archaeologist, historian and ornithologist.
Costa was a member of the Savoyard nobility and a diplomat in Sardinia, friend and aide to Charles Albert of Sardinia.[1] As an ornithologist he was an avid collector, especially of hummingbirds. Costa's hummingbird was named in his honour by Jules Bourcier.[2]
Costa was the father of Charles Costa de Beauregard.