The Sundar family name was one spoken with honor and reverence. None were ever spoke ill of, and should a question arise of their honor and integrity it was quickly set right by those who knew them. Now they are a fallen noble family of disgraced knights who are fearless, emotionless, and uncaring for anything other than own survival and vengence.
The blood of a dragon is vital in the creation of potions of longevity. The liver could used to cure any disease or ailment, while the heart could restore a PC to full and complete health, despite their age, or injury.