Assuming that this refers to Henry IX of England (Henry I Scotland) he was a Cardinal of the Roman Church and, it is alleged homosexual, and so had no children.
Otherwise you can have:
Henry IX the Black, Duke of Bavaria (1075-1126)
Henryk IX, Duke of Lubin (1369-c1419)
Henryk IX the Older, Duke of Glogow, Duke of Lubin (as Henryk XI), and Duke of Zagan (c1389-1467)
and for a bonus you can have:
Henry Dundas, Viscount Melville aka Harry IX, Grand Manager of Scotland (1742-1811) he had at least one child, a son, from his two marriages.
Henry's children's names were Elizabeth Mary and Edward the male heir obviously being Edward!
Henry IX the Older died in 1467.
Henry IX of Lubin died in 1419.
Henry IX of Lubin was born in 1369.
yes they were actaully separated by birth
mary Elizabeth i Edward vi
Charles Jacob and Carly
Henry Fitzroy (illegitamate), Mary (also known as "Bloody Mary"), and Elizabeth.
Caroline Chisholm's childrens' names were, Archibald, William, Henry, Sydney, Caroline and Monica.
Charles Henry Cooper had three children named Charles William Cooper, Henry Lewis Cooper, and Mary Alice Cooper. These names reflect the family's lineage and are often mentioned in historical records related to Cooper's life and work.
James, Winslow, Charles, Henry, and George.
"IX" is the common ending for the names of all male characters in Asterix comics.