Born in the family of Prince Peter Ivanovich Gagarin and Anna Mikhailovna, daughter of Kiev Governor-General Mikhail Leontiev. Mindful of her relationship to the Leontievs, Empress Elizabeth Petrovna took care of Gavriil from his youth. In 1771–1772, under the name of Penzin, with his relative Alexander Kurakin and Nikolai Sheremetev, he made a Grand Tour of Europe to supplement his education. In January 1773 he returned to Russia; half a year lived in St. Petersburg, since July 1773, as a volunteer, took part in the Russo-Turkish War. At the suggestion of Pyotr Rumyantsev, he was promoted to prime major. In 1774, he was granted the rank of Chamber Junker. Successfully moved up the career ladder: on November 26, 1781, he was appointed chief procurator of the 6th Department of the Senate in Moscow; in 1783 he was granted the rank of chamberlain; on September 2, 1793, he was appointed as a senator. He led a very wide lifestyle; to multiply the income, he was involved in not the most clean financial operations. According to Fyodor Rostopchin, "this prince Gagarin was a business man, but a depraved snare, entangled in debt and lost all reputation". He came close to the Grand DukePavel Petrovich thanks to his distant relatives, brothers Panin and Alexander Kurakin. He was a mediator in their correspondence. With the ascension to the throne of Paul I, the position of Gagarin was even more consolidated, in particular thanks to the friendship with Pyotr Lopukhin, the father of favorite of Pavel, Gagarin became a member of the imperial council. On April 5, 1797, he was awarded the Alexander Ribbon and all his debts were paid from the treasury in the amount of 300 thousand rubles. On January 2, 1799 he received the Order of St. John of Jerusalem. From 1799, Gagarin was the chief director of the State Loan Bank, then until the end of 1801 – President of the Collegium of Commerce. Since 1800 – Active Privy Councillor. With the advent of Emperor Alexander I to the power on March 24, 1801, he retained his high position at court. Under him, Gagarin took part in the work of the Commission of Laws. He was involved in settling southern Siberia, a mulberry business in Russia, the tariff of the Kyakhta customs and other issues. With the participation of Gagarin on March 1, 1801, a trade agreement was concluded with Sweden. He was a member of the Permanent Council, consisting of 12 members. He owned distilleries and was engaged in the supply of wine to the treasury. He spent the last years of his life in his Bogoslovskoye village in Dmitrovsky Uyezd of Moscow Governorate, where he was buried in the local church.
Freemasonry
Prince Gagarin was a prominent Masonic leader. In 1775–1777 he was an honored master in the Equality Lodge. Since 1779, after a trip to Sweden, he became the Grand Master of the "Great National Lodge of Russia", and in 1780 he became the great prefect of the chapter "Phoenix" in St. Petersburg. Moving to Moscow in November 1781, he opened the Provincial Lodge there; later headed the lodge "Sphinx". From 1782, he was also a member of the Masonic philanthropic organization "Friendly Scientific Society". At the beginning of the 19th century, he resumed active Masonic activity in the Lodge "The Dying Sphinx", where he delivered speeches.
In 1775, he entered into marriage with Praskovya Fedorovna Voeikova, daughter of the Kiev Governor-General, General-in-chief Fedor Matveevich Voeikov and widow Anna Ivanovna Zherebtsova. A son and five daughters were born in marriage. Princess Praskovya Fedorovna died aged 44 in Serpukhov; She was buried under the Intercession Church inNovospassky Monastery, in Moscow.
Maria – spouse of the brigadier Alexander Vislenev;
Elena – not married;
Varvara – in 1802, she ran away from home with landowner Alexander Sigunov. Gagarin forgave daughter and allowed her to marry him;
Anna – since 1803 the wife of Pavel Vasilyevich Golovin. In his estate near Moscow, Dedenevo founded a women's dormitory, on the basis of which in 1861 the Spaso-Vlakhernsky Convent was established;
Catherine was the wife of Nikita Sergeevich Dolgoruky.
Writings
He was fond of literary activities, was also close in correspondence with the famous Metropolitan of MoscowPlaton, who greatly appreciated his piety and endorsed his literary works. Archbishop Theophylact dedicated his essay to Gagarin, written back in 1787, "The Mirror of the Hottest Spirit to the Lord God". Gagarin often met with a distant relative of his wife, hegumen of Korniliev Monastery, Juvenal. In 1798 his books of theological and philosophical content were printed at the Synodal Printing House:
"Akathist with service and the life of St. Dimitry of Rostov" ;
"Service to the Venerable Theodosius of Totemsky with life and miracles".
Vasily Plavilshchikov in Mural of Russian Books indicated Gavriil Gagarin as the author of Erotic Poems, published by his son Paul in 1811. In 1813 his autobiographical notes appeared: "The fun of my solitude in the village of Bogoslovsky".
