The novelist was born Nelle Harper Lee on 28 April 1926.
In 1960, she published How To Kill A Mockingbird, which was a huge critical and commercial success and won the Pulitzer Prize for fiction.
It has sold more than 30 million copies worldwide.
She did not release another novel until last year, when Go Set A Watchman was published.
Lee was born 1926 in Monroeville, Alabama. She was the youngest of four children of lawyer Amasa Coleman Lee and Frances Cunningham Finch Lee.
She was a guardedly private person, respected and protected by residents of her town, rarely giving interviews.
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