Alexander Pavlovich Dianin, was a Russian chemist from Saint Petersburg, and was married to the adopted daughter of fellow chemist Alexander Borodin, was a Russian Romantic composer of Georgian origin, as well as a doctor and chemist, he was one of the prominent 19th century composers, known as what?
Alexander Dianin Alexander Pavlovich Dianin (Russian: Александр Павлович Дианин ; April 20, 1851 – December 6, 1918) was a Russian chemist from Saint Petersburg. He carried out studies on phenols and discovered a phenol derivative now known as bisphenol A and the accordingly named Dianin's compound. He was married to the adopted daughter of fellow chemist Alexander Borodin. In 1887, Dianin succeeded his father-in-law as a chair of the Chemistry Department at the Imperial Medical-Surgical Academy in St. Petersburg.
Niyazi Niyazi was born on August 20, 1912 in Tbilisi in a family of prominent Shusha musicians. His father was the composer Zulfugar Hajibeyov. He is the nephew of Uzeyir Hajibeyov, the founder of the Azeri classical music. He was playing the violin in "Qırmızı Kadet" Turkish military orchestra in 1921. He studied at the Gnessin Music School in Moscow in 1925-1926. In 1929-30 he studied at the Central Musical Technical School in Leningrad (now Saint Petersburg), but dropped out due to health problems. He returned to Baku in 1931. Right after that he was sent to Dagestan where he met his future wife Həchər khanum. Hecher Khanum's family would not approve of the marriage. So she and Niyazi decided to run away and secretly married. They lived a very difficult yet fulfilling life. The great love of his wife gave him strengths to produce most of his masterpieces, which contributed to Azerbaijan's and the musical treasury of the rest of the world.