Edward VII and Alexandra (by William Powell Frith):
http://www.royalcollection.org.uk/eGallery/object.asp?searchText=Marriage&x=0&y=0&pagesize=20&object=404545&row=17
The guest list is from the New York Times:
http://query.nytimes.com/mem/archive-free/pdf?_r=2&res=9B01E6DA143EEF33A25754C0A9619C94629ED7CF
Identifications (as best I can) from L to R:
?Frederick of Denmark, ? (looks like Kaiser Wilhelm I, but he's not mentioned as having been there...?), Karl of Holstein-Glucksburg (elder brother of Christian IX), ?William of Denmark (George I of Greece), Maharajah Dhuleep Singh, ?Viscount Palmerston (older gent holding staff), Carl of Leiningen (half-nephew of Queen Victoria), ? (balding man with moustache), Edward of Saxe-Weimar-Eisenach (I think... it may be August of SC & G), Louis of Hesse and by Rhine, Ernest II of Saxe-Coburg & Gotha (although he's not mentioned as having been there, it does look like him), (girls/women in foreground on left) Thyra of Denmark, Dagmar of Denmark, ?Louise of Hesse, Alice, Leopold & Arthur (little boys in front of Bridal Party), Bridal Party (consisting of: Lady Victoria Scott (I think she's the one in the front row at the back), Lady Eliza Bruce, Lady Emily Villiers, Lady Feodore Wellesley, Lady Diana Beauclerk, Lady Victoria Howard, Lady Augusta York & Lady Eleanor Hare), don't know the 2 tall chaps behind Bridal Party (?royals, ?nobles, ?politicians), Edward VII, Alexandra, George of Cambridge (behind Edward VII & Alexandra), Christian IX, ?August(us) of Saxe-Coburg & Gotha or Philippe of Flanders (chap behind Christian IX & Louise), Waldemar (boy), Louise (wife of Christian IX), ?Alexandrine Of Saxe-Coburg & Gotha, ?Archbishop of Canterbury, Maria Hendrika of Brabant, Beatrice (little girl), Louise, Duchess of Cambridge, Mary Adelaide of Cambridge, Queen Victoria (up top in box).
Missing (mentioned in article, but can't seem to find them in the painting):
* Tsarevich Nicholas Alexandrovich (eldest son of Alexander II),
* Frederick of Hesse-Kassel (http://www.royaltyguide.nl/images-families/hessen/hessenkassel4/1820%20Friedrich.JPG),
* ?Augustus of Saxe-Coburg & Gotha (presumably: http://www.royaltyguide.nl/images-families/wettin/saxecoburggotha2/1818%20August.jpg)
Not sure who is in the arch - probably various officials (?diplomats).
Others present included:
* Lord Alfred Paget
* Lord Proby
* Viscount Bury
* Sir Charles Phipps
* Hon. Mortimer Sackville-West
* Lord Camoys
* Earl of St. Germans
* Lord Edward Fitzalan-Howard
* Viscount Sidney
* Lady Edith Somerset
* Lady Geraldine Somerset
That's the best I can do with that one for the moment.
Any additions or corrections would be appreciated.
The Prussian
The details of the procession are available here:
http://www.london-gazette.co.uk/issues/22718/pages/1563I think many of your identifications are correct, but based on the order of procession and on the description provided by Violetta in reply #38 to this thread, a few aren't quite right.
First, the supporters or the bride and groom were the Crown Prince of Prussia (Frederick III) and Ernest II of S-C-G. I believe they are the two gentlemen standing closest to the Prince of Wales (the groom, Edward VII), with Ernest in the Robe of the Order of the Garter. The bride's supporters were her father, Prince Christian (later Christian IX) and the Duke of Cambridge. So I believe they are the two gentleman standing right behind Alexandra.
The ladies behind Alexandra I think are Edward's sisters" Victoria (Princess Royal), holding the hand of her son, William (later William II), Alice, Louise, Helena, and Beatrice (girl standing in front of Louise and Helena). I think it's interesting to note that although they are not "bridesmaids" (those being the non-royal train bearers), nor "supporters," Louise and Helena are dressed exactly as the train bearers are. You can even see a sprig of flowers on the skirt of one of them (sorry, don't know which is which) and corsages, and they have wreaths of flowers in their hair with veils.
So I think over on the left in the foreground with Thyra and Dagmar must be Louise (Alexandra's mother) between Dagmar and Frederick. The lady wearing the royal purple train I thought should be Alexandrine, wife of Ernest II, as she's the closest wife of a ruler (all the rest of them were still heirs, including Alexandra's father)-- BUT she is specifically listed as not present. So I'm going to guess instead that the lady wearing the royal purple train is the Duchess of Brabant, Marie Henriette, later Queen of the Belgians. She is listed as "her Imperial and Royal Highness" and seems to be the highest-ranking female of the right age who's unaccounted for. Perhaps her "mperial status allowed her to wear purple? Or perhaps it's Louise (Alexandra's mother) after all? (It can't be the Duchess of Cambridge as she was 66.)
This is a fun game!