Grand Duke of Yonderre
| Grand Duke of Yonderre | |
|---|---|
| Grand Duc Yonderresc Yondersche Großherzog | |
 | |
| Incumbent | |
 | |
| Auguste IV de Somua since 17 April 1992 | |
| Details | |
| Style | His Majesty |
| First monarch | Joanus de Martigueux as Grand Count |
| Formation | 1464 de facto 1494 de jure |
| Residence | Collinebourg Palace |
The Grand Duke of Yonderre (Burgoignesc: Grand Duc Yonderresc, Gothic: Yondersche Großherzog) is the head of state of the Most Serene Grand Duchy Yonderre and commander-in-chief of the Yonderian Defence Force. The Grand Duchy Yonderre was consolidated in the 15th century under Joanus de Martigueux during the Crusader Conquest of Joanusterre as a Grand County, with de Martigueux as Grand Count. This was ratified in 1494 with the Treaty for the guarantee of Joanus' Land. The title of Grand Duke was conferred on future rulers of Yonderre by Pope Gregory XIII in 1574 following lengthy negotiations. The Yonderian nobility and Grand Count Falco I de Kubagne had wanted the nation raised to the status of a Kingdom but due to stipulations in the Treaty for the guarantee of Joanus' Land, Yonderre could not be made a Kingdom as it belonged to the Crown of the Holy Levantine Empire de jure, despite the treaty having made Yonderre de jure autonmous and de facto independent in 1494.
The Yonderian monarch is the Grand Duke. Yonderre is an elective Grand Duchy with elections held immediately following the death of the incumbent Grand Duke. The resultant election is the traditional vote between the nine Counts of Yonderre, one of which ultimately ascends to the status of Grand Duke. The vote typically follows a few days after the death of the incumbent Grand Duke, allowing for the nine Counts to gather in Collinebourg. The shortest transition period between Grand Dukes was that of Falco IV de Kubagne ascending three days after the passing of Auguste III de Somua in 1820, while the longest interval was when Falco I de Kubagne ascended two months and two days after the passing of Joanus II de Donne in 1564. The longest reigning Grand Duke was Joanus X de Martigueux, whose rule of 62 years and 7 days spanned the latter half of the Great Depression, the entirety of the Great War and much of the Occidental Cold War. The shortest reigning Grand Duke was Giles III de Donne whose rule of three months and a day earned him the monicker "the Brief".
The incumbent Grand Duke is Auguste IV de Somua who ascended after the passing of Giles V de Kubagne on April 17th, 1992. Because of the elective nature of the monarchy, Yonderian regnal names follow a system of Christian name followed by numeral and then the respective house of the Grand Duke, meaning that Auguste IV de Somua is the fourth Auguste to be Grand Duke and that his house is House de Somua.
Grand Counts of Yonderre
| Name | Lifespan | Reign start | Reign end | Notes | Family | Image |
|---|---|---|---|---|---|---|
Joanus de Martigueux
| 10 June 1436 – 20 March 1503 (aged 66) | 15 September 1464 de facto 5 June 1494 de jure | 20 March 1502 | Reigned de facto 37 years, 6 months and 6 days Reigned de jure 7 years, 9 months and 16 days | House de Martigueux |  |
Mattius-Arnuald Egide d'Houicourt
| 11 March 1465 – 20 October 1525 (aged 60) | 20 April 1502 | 25 October 1525 | Reigned 23 years, 6 months and 6 days | House d'Houicourt |  |
Joanus II de Donne
| 6 February 1495 – 12 January 1564 (aged 68) | 11 November 1525 | 12 January 1564 | Reigned 38 years, 2 months and 2 days | House de Donne |  |
Falco de Kubagne
| 9 May 1528 – 28 December 1592 (aged 64) | 14 March 1564 | 19 June 1574 | Reigned as Grand Count 10 years, 3 months and 6 days | House de Kubagne |  |
Grand Dukes of Yonderre
| Name | Lifespan | Reign start | Reign end | Notes | Family | Image |
|---|---|---|---|---|---|---|
Falco I de Kubagne
| 9 May 1528 – 28 December 1592 (aged 64) | 19 June 1574 | 28 December 1592 | Reigned as Grand Duke 18 years, 6 months and 10 days Reigned 28 years, 9 months and 19 days in total | House de Kubagne | |
Joanus III de Martigueux
| 1 February 1537 – 17 November 1599 (aged 62) | 3 January 1593 | 17 November 1599 | Reigned 6 years, 10 months and 15 days | House de Martigueux |  |
Guillaume I de Donne
| 15 December 1563 – 22 August 1614 (aged 50) | 29 November 1599 | 22 August 1614 | Reigned 14 years, 9 months and 6 days | House de Donne |  |
Guillaume II de Banor
| 16 February 1583 – 6 September 1619 (aged 36) | 1 September 1614 | 6 September 1619 | Reigned 5 years and 5 days | House de Banor |  |
Auguste I d'Houicourt
| 1 December 1572 – 22 October 1627 (aged 54) | 15 September 1619 | 22 October 1627 | Reigned 13 years, 1 month and 8 days | House d'Houicout | .jpg) |
Auguste II d'Houicourt
| 11 February 1590 – 15 March 1645 (aged 55) | 1 November 1627 | 15 March 1645 | Reigned 17 years, 4 months and 15 days | House d'Houicourt |  |
Guillaume III de Martigueux
| 12 May 1597 – 12 January 1652 (aged 54) | 23 March 1645 | 12 January 1652 | Ruled 6 years, 9 months and 21 days | House de Martigueux |  |
| Falco II de Kubagne | 22 September 1610 – 25 February 1659 (aged 48) | 21 January 1652 | 25 February 1659 | Reigned 7 years and 5 days | House de Kubagne |  |
Joanus IV de Martigueux
| 2 January 1609 – 21 September 1672 (aged 63) | 1 March 1659 | 21 September 1672 | Reigned 13 years, 6 months and 21 days | House de Martigueux |  |
Giles I de Kubagne
| 6 May 1653 – 15 February 1676 (aged 22) | 29 September 1672 | 15 February 1676 | Regined 3 years, 4 months, and 18 days | House de Kubagne |  |
| Joanus V de Banor | 19 February 1633 – 15 March 1682 (aged 49) | 28 February 1676 | 15 March 1682 | Reigned 6 years and 16 days | House de Banor |  |
| Giles II de Donne | 29 December 1639 – 29 March 1693 (aged 53) | 24 March 1682 | 29 March 1693 | Reigned 11 years and 5 days | House de Donne |  |
Falco III de Kubagne
| 21 November 1643 – 25 June 1726 (aged 82) | 7 April 1693 | 25 June 1726 | Reigned 33 years, 2 months and 19 days | House de Kubagne |  |
Giles III de Donne
| 23 May 1659 – 30 September 1726 (aged 67) | 29 June 1726 | 30 September 1726 | Reigned 3 months and 1 day | House de Donne | .jpg) |
Giles IV de Mortain
| 23 December 1690 – 6 April 1740 (aged 49) | 6 October 1726 | 6 April 1740 | Reigned 13 years and 6 months | House de Mortain |  |
Joanus VI de Martigueux
| 16 March 1689 – 7 July 1761 (aged 72) | 15 April 1740 | 7 July 1761 | Reigned 21 years, 2 months and 23 days | House de Martigueux |  |
Guillaume IV de Donne
| 12 March 1721 – 9 August 1775 (aged 54) | 12 July 1761 | 9 August 1775 | Reigned 14 years and 29 days | House de Donne |  |
Joanus VII de Banor
| 11 October 1737 – 30 March 1787 (aged 49) | 15 August 1775 | 30 March 1787 | Reigned 11 years, 7 months and 16 days | House de Banor |  |
| Auguste III de Somua | 16 January 1748 – 14 May 1820 (aged 72) | 12 April 1787 | 14 May 1820 | Reigned 33 years, 1 month and 3 days | House de Somua |  |
| Falco IV de Kubagne | 6 December 1784 – 19 February 1842 (aged 57) | 17 May 1820 | 19 February 1842 | Reigned 21 years, 9 months and 3 days | House de Kubagne |  |
| Joanus VIII de Martigueux | 12 February 1791 – 15 June 1863 (aged 72) | 29 February 1842 | 15 June 1863 | Reigned 21 years, 3 months and 15 days | House de Martigueux | .jpg) |
| Giles IV de Kubagne | 5 March 1834 – 20 February 1895 (aged 60) | 19 June 1863 | 20 February 1895 | Reigned 31 years, 8 months and 2 days | House de Kubagne |  |
| Joanus IX de Somua | 11 August 1843 – 11 October 1920 (aged 77) | 28 February 1895 | 11 October 1920 | Reigned 25 years, 7 months and 14 days. | House de Somua |  |
Joanus X de Martigueux
| 22 March 1897 – 22 October 1982 (aged 85) | 15 October 1920 | 22 October 1982 | Reigned 62 years and 7 days | House de Martigueux |  |
| Giles V de Kubagne | 25 January 1919 – 12 April 1992 (aged 73) | 24 October 1982 | 12 April 1992 | Reigned 9 years, 5 months and 20 days | House de Kubagne |  |
| Auguste IV de Somua | 9 April 1940 | 17 April 1992 | Incumbent | House de Somua | |