In what order did Henry VIII have his children?

Mary Tudor

Elizabeth

Edward VI Seymour

Henry Firtzroy

Henry Carey

His first child was Mary tudor. This was from his first Marriage with Katherine of Aragon. Elizabeth was his second child from the marriage of Anne Boeyln. Edward VI was his third Child from Jane Seymour.

He had other children that were illigitamite. Henry Fitzroy was born from an affair when he was married to Katherine.

His second illigitamite son was from a brief affair with Mary Boeyln. This was during the time he was still married to Katherine.