Louis Marie Pantaleon Costa 1806–1864 Source: Wikimedia Commons About Louis Marie Pantaleon Costa French ornithologist (1806-1864) People from the Same Era Charles-Victor-Eugène Lefebvre 1805–1882 painter Paris Christian Conrad Sophus Danneskiold-Samsøe 1800–1886 civil servant Nikolay Ketcher 1809–1886 writer Moscow Friedrich Maximilian Hessemer 1800–1860 architect, poet, writer Darmstadt Ahmad Huseinzadeh 1812–1887 Sheikh-ul-Islam, religious education teacher, religious writer, ulema Salyan Ferdinand Beyer 1806–1863 composer, pianist