The Royal Dynasty that used to rule over the Kingdom of Franconia was the Royal House of Bourbon-Bourbon. However with the fall of the monarchy after the domestic revolution within Franconia that line technically ended. However a direct descendant still lives today as the head of what has become known as the House of D'Pont Du Lac. One of the younger sons of the last King of Franconia survived the revolution. He had the title, Prince D'Pont du Lac and his descendants claim the pretense to the Franconian throne whilst still retaining the D'Pont Du Lac Princely title by courtesy.
The current head of the House of D'Pont Du Lac is Prince Louis III seen on the far left in the picture. In the center we have his younger brother, Prince Valmont and their sister Princess Antoinette.
Seen in the center, here at the 2013 wedding of Prince Valmont to the Duchess of Roswind we see Princess Antoinette accompanying her brother Prince Louis.
The Duchess of Roswind's wedding was the highest profile wedding in 20013 due to the couple's high status within Royal circles.
His Highness Prince Louis III, Prince D'Pont Du Lac and Duke D'Chartres is seen above wearing traditional Franconian Court Dress. The "Royal" is omitted from the the style Highness due to the fact that D'Pont D'Lacs derive their title from a disenfranchised Prince of Franconia. As such cannot claim the title Prince of Franconia which would afford them the full style of Royal Highness.
The Dowager Baroness D'Rothchild is the sister of Prince Louis' farther and also a Princess D'Pont' Du Lac by birth. She was responsible for the sale of many of the remaining great historical pieces of Princely Jewellery. Through her the ruling House of Hanoveria will be a branch of the House D'Pont Du Lac due to her daughter having married the current Grand Duke of Hanoveria. Her youngest sister married into the D'Bacquemme Family making the current Marquis D'Bacquemme her nephew and that family another extended branch of the Franconian Royal line.