Good Evening
In OTL Leopold of Saxe-Coburg and Gotha, turned down the throne of Greece. After Belgium asserted its independence from the Netherlands on 4th October 1830, the Belgian National Congress considered several candidates and eventually asked Leopold to become King of the newly formed country. He was elected on 4 June, accepted, and became "King Leopold I of Belgium" on 26 June 1831.
I wish for Leopold to take the throne of Greece, becoming , and start up Greece into become a new power in Europe, like Italy or Austria, forming a small but impressive empire.
Ive already done this by making him build the first railway in continental Europe between Athens and Thessaloniki all with home grow industry and men.
All I need is a very good Prince/Duke to be King of Belgium. However, they can not be French or British due to my timeline

. Or even the list of 'several candidates ' picked by the BNC as I can not find this either.
Thank you, in advance for your help
By Royal Appointment
Grand Duke of Eltham