 When he was nineteen months old, Octavius became an older brother with the birth of his younger brother Prince Alfred.Octavius was three years of age when Alfred died on 20 August 1782, and he again became the youngest surviving child.Horace Walpole wrote to Sir Horace Mann that upon Prince Alfred's death, King George had declared "I am very sorry for Alfred; but had it been Octavius, I should have died too."