He was involved in the negotiations that led to the 1783
Treaty of Georgievsk with Russia, placing the Georgian kingdom under the protection of
Tsarina
Catherine II against
Persia or other powers. In 1784, Prince Chavchavadze was appointed as an
ambassador to
St Petersburg. He was welcomed in Russia, and Empress Catherine became a godmother at the
baptism of his Petersburg-born son,
Alexander, the future poet and general. During his tenure as ambassador, Garsevan urged the Russian government to timely fulfill the promise of protection, but Georgia was left without any assistance when, in 1795,
Persia attacked and devastated the country after Erekle's refusal to terminate his ties with Russia. Although many leading Georgian politicians became disillusioned in Russia, Chavchavadze still seconded the alliance with Russia, to which Georgia was bound by
common faith, and supported
George XII’s renewed quest for the Russian protection in 1799. ==Russian annexation and disillusionment==