The Death of Queen Amazonia — Barbara G. Tarn

Being a man in the Queendom of Maadre is tough, especially with the founding Queen, Amazonia.
When Smeraldo is called to the Queen's bed, he doesn't expect the cruelty awaiting him. Only a foreign merchant can help him to recover from the shock.
But Amazonia, who is almost two-hundred years old, is relentless.
A Silvery Earth novella for adult readers.