The scientific or taxonomic name would be Rosa 'Comte de Chambord'.

There were four (recognised) Kings of France named Henry or Henri. "Henri V" was the name given by royalists to the Comte de Chambord, who lived in the 19th century after the monarchy was abolished. He was expected to be named as the next king but he died instead. Thus he cannot truly be called a king of France.

Henri Guerlin has written:

'The Castle of Chambord'

Château de Chambord was created in 1547.

The only thing I can think of to substitute chambord is with creme de cassis.