Harper Lee’s exact medical cause of death has not been publicly disclosed, only that she died peacefully in her sleep at age 89 in Monroeville, Alabama.

What Is Known

  • Harper Lee died on February 19, 2016, in her hometown of Monroeville, Alabama, at the age of 89.
  • Family members and news reports stated that she passed in her sleep at an assisted living facility called The Meadows.
  • Statements from her family and major outlets noted her death was “peaceful” and “unexpected,” and did not name a specific medical cause such as heart attack or stroke.

Health Background

  • Lee had suffered a significant stroke in 2007 and afterward experienced ongoing health issues, including hearing loss, limited vision, and short‑term memory problems.
  • Following these health setbacks, she left New York, moved into assisted living, and remained in Monroeville for her later years.

So, What Was Her Cause of Death?

  • Public obituaries and family statements consistently describe her death as occurring in her sleep and do not attribute it to a particular disease or event.
  • Given her age and prior health issues, many commentators treat it as age‑related natural causes, but this is inferred rather than officially stated.

TL;DR: When people search “Harper Lee cause of death,” the most accurate answer available is that she died peacefully in her sleep at 89 in an assisted living facility in Monroeville, with no specific medical cause publicly announced.

Information gathered from public forums or data available on the internet and portrayed here.