Read more about Aunt May at: Wikipedia
Official Site: Marvel Comics
May Reilly Parker-Jameson, commonly known as Aunt May, is a supporting character in Marvel Comics' Spider-Man series. Created by writer Stan Lee and artist Steve Ditko, she first appeared as May Parker in Amazing Fantasy #15 (August 1962).
In the main story continuum, Aunt May is aunt-by-marriage and adoptive mother of Peter Parker, who leads a secret life as Spider-Man. She is nurturing and supportive of Peter although, throughout most of Spider-Man's history, she has not known of his secret life and considers Spider-Man frightening.
An important part of the Spider-Man series, she has appeared in most other media adaptations of the character.
After years as a widow, Aunt May married John Jonah Jameson, Sr. (father of long-time Spider-Man adversary J. Jonah Jameson).