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 of Lubin was born in 1369.
Henry IX the Older died in 1467.
Henry IX of Lubin died in 1419.
yes they were actaully separated by birth
Charles Jacob and Carly
mary Elizabeth i Edward vi
Henry Fitzroy (illegitamate), Mary (also known as "Bloody Mary"), and Elizabeth.
Caroline Chisholm's childrens' names were, Archibald, William, Henry, Sydney, Caroline and Monica.
James, Winslow, Charles, Henry, and George.
"IX" is the common ending for the names of all male characters in Asterix comics.
No children with Ann. He didn't like her and I doubt they spent one night together .