Arthur was troubled by another matter, the previously agreed-upon deal with the British concerning the handling of the Greek royal family.
Logically and sentimentally, supporting George II's return to the Greek throne was beneficial to Arthur.
After all, George II was Arthur's brother-in-law, and their relationship was theoretically quite close.
If he could gain George II's support by restoring Monarchism in Greece, it would be very helpful for Arthur's status in Europe, as he himself was considered a legitimate king.
But the question was, how to restore Monarchism in Greece? It should be noted that the establishment of the Second Hellenic Republic was not heavily influenced by external interventions.
In other words, George II was overthrown by the will of the Greek people. Though most of the blame lay with the previous two monarchs – George II's father and brother.
However, both were now deceased, and the Greek people could only put the blame on George II.
