Peter von Bilderling

Baron Peter von Bilderling (Russian: Пётр Александрович Бильдерлинг; 26 May 1844 – 25 September 1900) was an engineer and an officer in the Engineering Corps of the Imperial Russian Army.

He was a humanist known for his writings, notably his book on the military horse, and his reorganisation of the Ijevsk arms factory, the manufacture of Berdanka carbines, and the creation of the no 4 line carbine. He founded the Tsaritsin refinery with Robert Nobel and the Branobel oil company in Baku with Ludwig Nobel. Finally, he established an agricultural and meteorological station in Zapolie, where he invented the roséomètre, an instrument for measuring the dew point. He was the brother of Baron Alexandre von Bilderling, the general who participated in the Russo-Japanese War.