History of the English line of succession to the French succession. On the day of Henry IV's death, 20 March 1413, the line of succession to the English throne following agnatic primogeniture was: Upon his death, the throne passed smoothly to the first person in line, who became Henry V. On the day of Henry V's death, 31 August 1422, the line of succession following agnatic primogeniture was: Upon his death, the throne passed smoothly to the first person in line, who became Henry VI. On the day of Henry VI's first deposition, 4 March 1461, the line of succession following agnatic primogeniture was; However, during the
Line of succession to the former throne of the Kingdom of the Two Sicilies the male line from Charles III of Spain, who succeeded to the crowns of Naples and Sicily in 1734, reigning there until his succession to the throne of Spain with the death of his brother, Ferdinand VI of Spain on 10 August 1759. By the treaties of Vienna of 1738 and Naples of 1759 he was obliged to surrender the thrones of Naples and Sicily to preserve the European balance of power, The treaties of Vienna and Naples required that King Charles separate the Spanish crown from the Italian sovereignties by designating Don Charles, his second surviving son (the eldest