Dragonborn The Four Flames

Dragonborn royalty rules seven kingdoms in old Aetheran. A curse a thousand years old kills purebloods before they reach a hundred, and heirs come rarer with each generation. Elena is a princess of a noble house that has fallen. Her mother is dying. Elena puts her bloodline up for sale at a sacred ritual. Crown Prince Drake finds her there and takes her for a woman after money. He completes the Dragonflame Union with her, a rite as old as the line. Months later Elena finds she is carrying quadruplets, four dragon flames inside her. Four heirs would carry Drake's bloodline on and break the curse. Drake has a nephew with his own designs on that power, and the children are in the way of them.