Yekaterina Petrovna Gagarina, maiden name Soymonova (Соймонова), was a wife of a Russian diplomat Prince Grigory Gagarin and the daughter of the Secretary of State Pyotr Soymonov.
- Occupation
- diplomat
- Citizenship
- Russian Empire
- Born
- May 25, 1790, May 23, 1790
- Died
- February 27, 1873