Human stakes
Guards officers, courtiers, bureaucrats, churchmen, and the imperial family all have reason to calculate quickly, because hesitation can become treason when a crown changes hands in public.
Historical event
Catherine the Great seizes power in Saint Petersburg
28 June 1762 · Saint Petersburg, Russia
In 1762 Catherine overthrows Peter III and takes power in Saint Petersburg with guard support, converting court intrigue into regime change. The event matters because Russian imperial succession is decided not by orderly inheritance alone but by the willingness of military and political elites to shift the throne under pressure.
Why it matters
The event matters because it begins Catherine's long reign and gives Russia one of its most consequential eighteenth-century political turning points.
What changed
After 1762, Catherine rules as empress in her own right and Russian imperial expansion, reform, and court culture proceed under a new political settlement born of coup.
Connected people
Lives that hold the event open
Catherine keeps the event human because empire changes course here through one woman who must turn vulnerability at court into command.
Continue exploring
Keep the event connected to place and time
Begin in Saint Petersburg, then move to Catherine the Great to feel how imperial succession can become a public seizure of power.