On her last trip in 1993, Princess Maha Chakri Sirindhorn visited Buddhist republic of Buryatia.
Princess Maha Chakri Sirindhorn during 2015 visit to Germany. Picture: BMW
The expected visit to Russia will mark the 120th anniversary of diplomatic ties between the two countries.
Russian ambassador to Bangkok Kirill Barsky said: 'Our Thai colleagues have informed us about the possibility of Princess Sirindhorn's visit next autumn.
'This is a joyous and important event.
'We know how busy Her Royal Highness's schedule usually is.'
Previously in 1993 she visited Ulan-Ude, capital of Buryatia, on the shore of Lake Baikal, along with Moscow, St Petersburg and Astrakhan.
'After learning about the princess's possible visit and her passion for photography, a number of Russian businessmen have taken the initiative to organise an exhibition of Her Royal Highness's works in Moscow,' said the ambassador.
'During his stay in Russia this past May, Thailand's Prime Minister Prayut Chan-o-cha conveyed invitations to visit Thailand on the occasion of the 120th anniversary of bilateral relations to the Russian President Vladimir Putin and Prime Minister Dmitry Medvedev.
'On the whole, I must say that the two countries' heads of governments have reached a general agreement that the mutual visits will take place annually from now on.'
Archeologists discovered a new stone bracelet, two sharp pins, a marble ring and fox tooth pendants.