The notable figure who formed the first women's rights convention in Seneca Falls is Elizabeth Cady Stanton. In 1848, she, along with Lucretia Mott, organized the convention, which marked the beginning of the organized women's rights movement in the United States. Stanton's "Declaration of Sentiments," presented at the event, outlined demands for women’s rights, including suffrage. Her advocacy laid important groundwork for future efforts in achieving gender equality.