What was the cause of Venetia Burney's death?

Venetia Burney, who is best known for naming the dwarf planet Pluto, passed away on April 30, 2023, at the age of 99. The cause of her death was not widely reported, but she had lived a long life and contributed significantly to astronomy. Burney's legacy continues through her contributions to the field and her connection to the iconic celestial body.