What famous man was a supporter of women's suffrage and was even present at the first women's rights convention?

## Step 1<br />The question is asking for the name of a famous man who was a supporter of women's suffrage and was present at the first women's rights convention. This question is related to the history of the women's rights movement in the United States.<br /><br />## Step 2<br />The first women's rights convention, also known as the Seneca Falls Convention, took place in 1848 in Seneca Falls, New York. This convention is considered the birth of the women's rights movement in the United States.<br /><br />## Step 3<br />The famous man who was a supporter of women's suffrage and was present at this convention was Frederick Douglass. He was a former slave, an abolitionist, and a leading figure of the early National Woman Suffrage Association.