Elrond. Until he leaves and sails into the west, he continues to support and help all the free peoples of Middle Earth despite all his losses. His parents were taken from him at a young age. He was held captive for a while, then raised by a loving stepfather who he saw killed by Sauron in battle. His beloved twin brother chose long ago to be mortal and died. He has lovingly raised a number of his brother's descendants and seen them all die. His daughter married one of them and died. His wife was attacked (raped?) by orcs and despite his great powers of healing, she sailed into the west not fully healed. He feels he has lost a great deal, yet continues to do what is right, to act according to the will of the Valar and provide help to all those in need.