While she originally said in an interview that Dumbledore was around 150 years old when he died, we know from Pottermore that he was actually around 115 years old when Snape fired the killing curse at him on top of Hogwarts' astronomy tower.

Who killed Aurelius Dumbledore?

It was revealed one year later that Grindelwald was so desperate to gain the New York Obscurial's allegiance because he believed that this was the only way for him to kill Albus Dumbledore without violating the blood pact, as Grindelwald believed that the Obscurial was the only wizard other than himself powerful enough ...

When did Aurelius Dumbledore die?

While she originally said in an interview that Dumbledore was around 150 years old at the time of his death, Pottermore lists Dumbledore's birth year as 1881 and his death date as June 30, 1997, meaning he was actually around 115 years old when he died.