Should i let lady isolde die

Owen the Blacksmith says “[Isolde's] an Orlesian girl from beyond the western mountains. Far too young for our arl.” Honestly this coupled with her looking. I let the lady sacrifice herself in Redcliffe. to be on my side with the mage trip, and I figured if someone had to die it might as. But all that changed when he met Isolde, a poor seamstress. Viego was deeply attached to her until, one fateful day, she died while trying.