What are the former names of St Petersburg?

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Tags

1. #leningrad
2. #became
3. #still
4. #confusingly
5. #petrograd
6. #named
7. #german
8. #because
9. #world
10. #after
11. #union
12. #petersburg
13. #surrounding
14. #vladimir
15. #region
16. #soviet
17. #beginning
18. #oblast
19. #sounded
20. #renamed
21. #lenin
22. #again
23. #collapsed
24. #known
25. #death