The last mention of her was when she was around two years old and was in the care of Katherine Brandon Duchess of Suffolk, and as she is never mentioned again it is generally assumed that she died when she was aged between 2 and 4. However some people claim that she lived and went on to marry and have children but there is no evidence for this and had she lived you would have thought that this would have been recorded or mentioned somewhere.
Mary Seymour was born on August 30, 1548.
She wasn't Jane Seymour's sister, but she WAS a member of the Seymour family. She lived long after Jane Seymour, being born in 1607, and married into the Dyer family. She died in 1660 at the age of 52.
Michel Seymour was born in 1954.
Seymour Itzkoff was born in 1928.
Seymour Nurse was born in 1933.
Seymour Brunson was born in 1798.
Seymour DeKoven was born in 1903.
Seymour Fagan was born in 1967.
Seymour Fogel was born in 1911.
Seymour Sarason was born in 1919.
Seymour Mayne was born in 1944.
Dermot Seymour was born in 1956.
Seymour Hutner was born in 1911.