My favourite one would be Frederick William, Grand Duke of Mecklenburg-Strelitz, became a Doctor of Civil Law of the University of Oxford. Born a few months after Victoria in 17 October 1819, he will out live her by three years, dying on 30 May 1904.
In OTL Friedrich Wilhelm and his wife Augusta celebrated their diamond wedding anniversary by distributing 25 Pfennig from the public treasury to every citizen of the grand duchy.
In the late 1830s, William IV of the United Kingdom wished to marry his niece Princess Alexandrina Victoria of Kent (and future Queen of the United Kingdom). to one of the son's of King William II of the Netherlands.
Nothing came of this however, as Victoria remarked to her uncle Leopold I of Belgium, "The Netherlander boys are very plain and have a mixture of Kalmuck (Mongol) and Dutch in their faces, moreover they look heavy, dull, and frightened and are not at all prepossessing. So much for the Oranges, dear Uncle".
But if she had wanted to marry one of his sons there is:
- William Alexander Frederick Constantine Nicolas Michael (1818–1848)
- William Frederick Henry "the Navigator" (1820–1879)
There is Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg (1814-1885) older brother of Christian IX of Denmark, who became known as the "the father-in-law of Europe" so with Chirstian IX and Victoria I's children, we could end up with a member from the House of Schleswig-Holstein-Sonderburg-Glücksburg, on every throne/
If Napoleon Bonaparte, is able to peacefully keep the French Empire inplace then there could be:
- His son, Napoleon II.
- His nephew, Louis-Napoléon Bonaparte (Napoleon III)
- His stepgrandson Auguste Charles Eugène Napoléon de Beauharnais, the eldest son of Eugène de Beauharnais.
And for shits and giggles, there are two funny ASBs:
= Abdülmecid I of Ottoman Empire
= Tokugawa Iesada, 13th shogun of the Tokugawa shogunate of Japan.