Well done everyone who guessed the identity of the Polish amazon: it was Countess Emilia Plater. Born in Lithuania, raised in modern-day Latvia, she died at Kapčiamiestis (Kopciowo) in Lithuania in 1831. This is her monument.
Her extraordinary and short life is well told on Wikipedia, here:
The first right answer came from Canada, I believe – so congratulations to falcon44! And if they want their copy of An Evil Eye, I just need an address…
Another quiz soon!