Well at least Russia has moved past some its medieval mythology to justify the war. It’s now moved on to early modern history lessons from the time Peter the Great:
“The Great Northern War with Sweden lasted 21 years. Twenty-one years. But just a few years after it began, Peter the Great offered peace to the Swedes… What did the Swedes say? ‘No, we will fight to the last Swede’,” Medinsky said in an interview with pro-Kremlin TV host Yevgeny Popov.
https://www.themoscowtimes.com/2025/05/16/kremlin-negotiator-invokes-peter-the-greats-21-year-war-with-sweden-in-ukraine-talks-a89109
Still, the Russians get the history of the war with Sweden wrong. But that is only to be expected of an aggressor state.
Kremlin is not interested in any terms short of Ukraine’s total capitulation.