Editing Henry IV of England (section)

== Titles and arms ==
=== Titles ===

* Styled [[Earl of Derby]] (1377–1397);{{sfn|Given-Wilson|2016|p=25}}
* [[Earl of Northampton]] and [[Earl of Hereford|Hereford]] (22 December 1384 – 30 September 1399);{{sfn|Cokayne|Gibbs|Doubleday|Warrand|1926|p=477}}
* [[Duke of Hereford]] (29 September 1397 – 30 September 1399);{{sfn|Cokayne|Gibbs|Doubleday|Warrand|1926|p=477}}
* [[Duke of Lancaster]] (3 February – 30 September 1399);{{sfn|Cokayne|Gibbs|Doubleday|Warrand|1926|p=477}}
* [[King of England]] and [[Lord of Ireland]] (30 September 1399 – 20 March 1413).{{sfn|Given-Wilson|2016|p=154}}

'''Duke of Hereford''' was a title in the [[Peerage of England]]. It was created in 1397 for [[Richard II]]'s cousin, [[Henry IV of England|Henry Bolingbroke]], due to his support for the King in his struggle against their uncle [[Thomas of Woodstock, 1st Duke of Gloucester]]. As such it was a ''duketti'' ("little dukes") title. It merged in the crown on Henry's usurpation two years later, and has never since been recreated.{{sfn|Cokayne|Gibbs|Doubleday|Warrand|1926|p=477}}<ref>{{Cite book |last1=Clark |first1=Linda |url=https://books.google.com/books?id=FAk7EAAAQBAJ&dq=%22duke+of+hereford%22+++%22duketti%22&pg=PA29 |title=Rulers, Regions and Retinues: Essays Presented to A.J. Pollard |last2=Fleming |first2=Peter |date=2020 |publisher=Boydell & Brewer |isbn=978-1-78327-563-2 |language=en|pages=28–29}}</ref>

=== Arms ===
Before his father's death in 1399, Henry bore the arms of the kingdom, differenced by a ''label of five points ermine''. After his father's death, the difference changed to a ''label of five points per pale ermine and France''.<ref>{{Cite web |last=Velde |first=Francois R. |title=Marks of Cadency in the British Royal Family |url=http://www.heraldica.org/topics/britain/cadency.htm |url-status=live |archive-url=https://web.archive.org/web/20180317070105/http://www.heraldica.org/topics/britain/cadency.htm |archive-date=17 March 2018 |access-date=17 August 2012 |publisher=Heraldica.org}}</ref>

[[File:Royal Arms of England (1399-1603).svg|thumb|Upon his accession as king, Henry updated the arms of the kingdom to match an update in those of royal France from a field of [[fleur-de-lys]] to just three.]]

{{Gallery|width=180|height=180|align=center
|File:Arms of Henry Bolingbroke, Duke of Hereford.svg|Coat of arms as Duke of Hereford
|File:Arms of Henry Bolingbroke, Duke of Hereford and Lancaster.svg|Coat of arms as Duke of Hereford and Lancaster
|File:Henry Bolingbroke, 3rd Earl of Derby, KG.png|Coat of arms as [[Earl of Derby|3rd Earl of Derby]], [[Order of the Garter|KG]]
|File:Coat of Arms of Henry IV of England (1399-1413).svg|Henry's [[Achievement (heraldry)|achievement]] as king with the old arms of France
|File:Coat of Arms of Henry IV & V of England (1413-1422).svg|Royal [[Achievement (heraldry)|achievement]] as king
}}