The “F” in F. Scott Fitzgerald stand for Francis.
His full name was Francis Scott Key Fitzgerald, and yes, he was the second cousin, three times removed, of the Francis Scott Key who wrote the U.S. national anthem.
F. Scott Fitzgerald is widely regarded as one of the greatest American writers of the 20th century, and his most famous work is the celebrated classic, The Great Gatsby.
Fitzgerald was born on September 24, 1896 in Saint Paul, Minnesota, to an upper middle class Irish Catholic family.