Dtgk

[normchurch]

russian tsar who founded petrograd and leningrad

[scorpiojo]

Peter the Great

[TAFFWILLIAMS]

Peter I

[normchurch]

thank you.

[scooping]

Except he founded St Petersburg, which , many years later, was re-named Petrograd and, later again, became called Leningrad. Odd phrasing of question.