certainty that the effigies do represent accurate portraiture. Titles and arms Titles Styled Earl of Derby (1377–97) Earl of Northampton and Hereford (22 December 1384 – 30 September 1399) Duke of Hereford (29 September 1397 – 30 September 1399) Duke of Lancaster (3 February – 30 September 1399) King of England and Lord of Ireland (30 September 1399 – 20 March 1413) 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. 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. Genealogy Marriages and issue First marriage: Mary de Bohun The date and venue of Henry's first marriage to Mary de Bohun (died 1394) are uncertain but her marriage licence, purchased by Henry's father John of Gaunt in June 1380, is preserved at the National Archives. The accepted date of the ceremony is 5 February 1381, at Mary's family home of Rochford Hall, Essex. The near-contemporary chronicler Jean Froissart reports a rumour that Mary's sister Eleanor de Bohun kidnapped Mary from Pleshey Castle and held her at Arundel Castle, where she was kept as a novice nun; Eleanor's intention was to control Mary's half of the Bohun inheritance (or to allow her husband, Thomas, Duke of Gloucester, to control it). There Mary was persuaded to marry Henry. They had six children: Henry had four sons from his first marriage, which was undoubtedly a clinching factor in his acceptability for the throne. By contrast, Richard II had no children and Richard's heir-presumptive Edmund Mortimer was only seven years old. The only two of Henry's six children who produced legitimate children to survive to adulthood were Henry V and Blanche, whose son, Rupert, was the heir to the Electorate of the Palatinate until his death at 20. All three of his other sons produced illegitimate children. Henry IV's male Lancaster line ended in 1471 during the War of the Roses, between the Lancastrians and the Yorkists, with the deaths of his grandson Henry VI and Henry VI's son Edward, Prince of Wales. Second marriage: Joanna of Navarre Mary de Bohun died in 1394, and on 7 February 1403 Henry married Joanna, the daughter