She was the only child of marshal Feodor Baryatinsky (1742-1814) and his wife princess Maria Vasilevna Chovanskaya (died 1813).
Ekaterina came to public attention in 1785, aged 17, during a stay at the Anichkov Palace as a guest of Grigory Potemkin, and soon afterwards became a lady in waiting to the empress[1] In January 1786 she married prince Vasily Vasilevich Dolgorukov (1752-1812), with whom she had five children: After their marriage the young couple settled in Saint Petersburg.
They also spent two years in Dresden before travelling to Vienna and Paris before returning to Russia.
In August 1806 they moved to Vienna before returning to Russia in July 1807.
Her husband died of apoplexy in 1812, leaving her with half a million roubles in debt.