Tringham Family IN England and Russia

My 4x grandmother in mine mothers line was Elizabeth Tringham, born 1789 in St.-Petersburg (Russia ) married there Charles Hide in 1817.
Her parents were William and Margaret Tringham from London. From a family of builders and carpenters ?
It seems that the family went to Russia in the period 1786-1789 together with their daughter Sarah, born 1785 in London.
In Russia they got after Elizabeth, a son Thomas, born 1791 and an other daughter Dorothy, born 1808 both in St.-Petersburg.
At least William and Margaret left Russia around 1812. Their children stayed behind. Sarah married Timothy Roper, Dorothy a George Bryce.
Looking for any information !!!