William IV of Britain's daughter Elizabeth survives.

The real world Greek agreement had the Crown going to Ottos younger (but not his older) siblings and their lines in the event Otto failed to produce issue.

Leopold is the youngest of his family - would the line devolve to his elder brothers in the event of his lack of issue? This would mean Albert and Ernest as being third and fourth in the line of Greek succession at the point of Leopolds Greek coronation.

Ultimately for the timeline, it's irrelevant as we know Leopold has issue and his line continues to the present. But the Convention of London in 1830 wouldn't have known that - so a designated contingency would be required.

If Otto isn't given a consolation prize of a Grand Duchy - would that leave the Russians a bit miffed and could this then be what triggers the Prince of Wales being promised to a Russian princess, or one being betrothed to George of Kent/Hanover?

Do we then shift the Grand Duchies to Leopolds elder brothers Ferdinand and Ernst?

If Otto is in Greece, what stops there being a civil war the moment Leopold does something that some people don't like?
 
As a thought - could then Crimean War occur slightly earlier in this timeline, precipitated by the failure of the Russians to land their candidate as King of Greece, nor for their preferred candidate to be the Queen?

So the Crimea becomes Russia vs France with Bavaria on the Russians side and Leopolds Greece on France/Britain, with Bavaria and Otto being promised Greece should the Russians win.
 
As a thought - could then Crimean War occur slightly earlier in this timeline, precipitated by the failure of the Russians to land their candidate as King of Greece, nor for their preferred candidate to be the Queen?

So the Crimea becomes Russia vs France with Bavaria on the Russians side and Leopolds Greece on France/Britain, with Bavaria and Otto being promised Greece should the Russians win.

I think that would be quite interesting, more based around Greece than anywhere else
 
I think as well that Bavaria would be allied with Austria, which could see fighting between Austria and prussia, and the north and south her,an confederations
 
I was thinking partition occurs and then he tries to occupy the Free State of Antwerp with outside backing.
Great idea. Perhaps we get our Jacobite pretender on the throne of Antwerp, and he uses his state, in the French orbit, to challenge Elizabeth's succession?
Would Constantine have taken the throne though? Considering he was so reluctant to otl? Furthermore, would the child of a morgantic marriage be considered eligible to inherit?
We're talking about a country that accepted foreign princesses as legitimate rulers.
 
Great idea. Perhaps we get our Jacobite pretender on the throne of Antwerp, and he uses his state, in the French orbit, to challenge Elizabeth's succession?

We're talking about a country that accepted foreign princesses as legitimate rulers.
Post the Pauline laws?
 
In my opinion either the future King of Greece or barring that the Crown Prince, needs to marry a Russian Grand Duchess. Russia is very much in its "protector of the Orthodox in current and former Ottoman lands" phase and the Greeks will want the RF to be Orthodox.

The reason Leopold married Louise IOTL was to give him an in with Catholic Belgium (and appease the French). Sure he wasn't a Catholic, but he was marrying a French Catholic who would raise their kids to be good Catholics. The political calculus that made Leopold choose to marry Louise IOTL would not have the same result as King of Greece. He doesn't need a Catholic wife and French support, but he does need an Orthodox wife and support from Russia.

It makes way more sense for Leopold to wait a few years and marry, say, Nicholas I's eldest daughter Maria Nikolaevna, then to marry Louise.

If there must be a Leopold-Louise match then a) either Leopold and/or Louise must convert to Orthodoxy or make a big show of how devoted the royal children are to the Orthodox faith and b) the Crown Prince is betrothed to a Russian Grand Duchess asap whether he wants to marry her or not (most likely either a surviving Alexandra Alexandrovna, her sister Maria, or her cousin & OTL Queen of Greece Olga Konstantinovna)
 
In my opinion either the future King of Greece or barring that the Crown Prince, needs to marry a Russian Grand Duchess. Russia is very much in its "protector of the Orthodox in current and former Ottoman lands" phase and the Greeks will want the RF to be Orthodox.

The reason Leopold married Louise IOTL was to give him an in with Catholic Belgium (and appease the French). Sure he wasn't a Catholic, but he was marrying a French Catholic who would raise their kids to be good Catholics. The political calculus that made Leopold choose to marry Louise IOTL would not have the same result as King of Greece. He doesn't need a Catholic wife and French support, but he does need an Orthodox wife and support from Russia.

It makes way more sense for Leopold to wait a few years and marry, say, Nicholas I's eldest daughter Maria Nikolaevna, then to marry Louise.

If there must be a Leopold-Louise match then a) either Leopold and/or Louise must convert to Orthodoxy or make a big show of how devoted the royal children are to the Orthodox faith and b) the Crown Prince is betrothed to a Russian Grand Duchess asap whether he wants to marry her or not (most likely either a surviving Alexandra Alexandrovna, her sister Maria, or her cousin & OTL Queen of Greece Olga Konstantinovna)

Alright interesting, I do think Leopold would convert to Orthodoxy, he seems the type to know the political sense behind that. As for waiting to marry a daughter of Nicholas I, could he afford to? I suppose if he becomes King in 1832, and waits until 1835, that should be fair, and in the meantime, I imagine one of his brothers is going to be heir apparent and pressurised into converting as well
 
In such an instance, could we see the plan put forward before, where Otto is named a potential heir and given a title in Greece?
 
Maybe we should check his ancestry? Something interesting about Otto historically, and, later, the Greek Oldenburgs, is that they actually descended from Byzantine emperors.
 
Maybe we should check his ancestry? Something interesting about Otto historically, and, later, the Greek Oldenburgs, is that they actually descended from Byzantine emperors.

Oh now that's very interesting. I imagine that's why he was put forward otl
 
Leopold may have as well. The Bulgarian Wettins had Byzantine and medieval Bulgarian ancestors.

This is very true. Hmm, I wonder, would Leopold really wait for three years to marry, or would he go straight in to a marriage with a Russian backed candidate? And then marry his firstborn son to a Russian Princess?
 
This is very true. Hmm, I wonder, would Leopold really wait for three years to marry, or would he go straight in to a marriage with a Russian backed candidate? And then marry his firstborn son to a Russian Princess?
Good question. The negotiation which earns him the throne may require a Russian match.
 
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