Nikolai Nikitich Demidov [SEP] place of death
Nikolai Nikitich Demidov
Count Nikolai Nikitich Demidov (9 October / November 1773, Chirkovitsy, Saint Petersburg Governorate – 22 April 1828, Florence) was a Russian industrialist, collector and arts patron of the Demidov family.
Life.
The son of Nikita Akinfiyevich Demidov (1724-1786) and his third wife Alexandra Safonova, Nikolai Demidov inherited his father's industrial empire aged only 15 and began to spend so recklessly that the government had to send in the receivers. In September 1795 at Saint Petersburg he married Baroness Elisabeta
Pavel Nikolaievich Demidov
Count Pavel (called Paul) Nikolaievich Demidov (; 6 September 1798 – 25 March 1840) was a Russian nobleman of the Demidov dynasty. 
Life.
The eldest son of Count Nikolai Nikitich Demidov and Baroness Elisabeta Alexandrovna Stroganova, he fought as an officer in his father's regiment and received his baptism of fire at the battle of Borodino in 1812. After the war he entered the Chevalier Guards regiment. In 1828 he purchased the Sancy diamond. He received his regimental discharge in 1831 with the rank