Several months ago, after seeing several charts showing how all of the European monarchs were related, I asked two questions of this group: 1) Was there a similar chart for all of the Dukes (answer: no) and 2) Are all of the Dukes related to the Royal Family? (answer: yes).
I decided to put together a chart showing the connections of all of the present day Dukes. That idea then expanded to include ducal lines that became extinct in the 20th century (i.e., Leeds, Newcastle and Portland). Slowly but surely, my break points kept expanding, and I ended up doing the lines of every Duke and Duchess ever created (hereditary and life), designated, nominated or styled.
As all of you who have done this type of research know, it is long, tedious and frustrating, but once it's completed, there's a tremendous sense of accomplishment. Also, the information that you learn is invaluable. With the hope that perhaps at least one person finds something useful, I will share my research with all of you.
Before I begin posting (I think there are about 26 parts, some very lengthy, and others quite short, so it will take several days), I ask that you keep these notes in mind:
1. Instead of one giant family tree, which would have been difficult to manage and understand, I have broken the trees down by monarch. The only exceptions are for the Cornwall and Rothesay dukedoms, which are listed by themselves. Please also note that those Dukes are only listed in that location with that specific title.
2. My goal was to find ONE royal connection of the FIRST Duke/Duchess. (Many of them, even the first ones in the ducal line, have multiple connections to the Royal Family.) I also wanted that connection to be the closest one to a monarch. That means that the Prince of Wales (as Duke of Cambridge), although he is related to Queen Elizabeth II, is listed with the monarch he is most closely related to, his father, King Charles III.
3. My primary concern on all of the trees are the Dukes and Duchesses. Where appropriate, I have included their highest title prior to their ducal rank, which may or may not include titles that they may have inherited from their parents.
4. All of the relevant blood ancestors are shown. With regards to marriages: All males who married into the family are shown, regardless if they held a title or not. (This is to primarily show change of family name.) Females who married into the family are shown only if they were peeresses in their own right, were members of the Royal Family or if their marriage affected the descent of a title or particular name change.
5. My main sources were the last print editions of both Burke's Peerage and Debrett's Peerage, "Britain's Royal Families by Alison Weir (1989 ed.), as well as online editions of Burke's, the Complete Peerage, Debrett's and the Scots Peerage. In some cases, information was not available from these sources, so I used the following online sources:
britannica.com, genealogics, org,
our-royal-titled-noble-and-commoner-ancestors.com,
thepeerage.com and
wikipedia.org (only when sourced). Special mention as well to two extremely useful online sources from our own members, Leigh Rayment's Peerage Page, now maintained by maltagenealogy and Paul Theroff's An Online Gotha.
6. I often found that even well respected sources such as Burke's, Complete Peerage and Debrett's disagreed on information such as dates of birth and/or death and the numbering of peers. I tried my best to reconcile the information, as my goal was to be as accurate as possible. My apologies for any errors or confusion.
Lastly, thanks to all of you for your patience and help in answering the many questions and request for help that I have posted.