Wait how am I emperor? Anyone else with unplan emperorships?

[Suzaku]

So as British Empire I won the HYW and so I have already inherited France (well integrated) so I was a dominate power in Europe. So the AI Emperor Brandenburg, in its infinite wisdom decides to disrupt my trade. In response to the trade dispute I declare war on him and as it was perfect change to attack Spain who was his ally. I managed to seperate peace Spain for humiliation and than just vassalized the Emperor, in doing so I became Emperor oO. So looking at the electors I notice that there was only 6 electors and 3 of them were my allies with royal marriage and alliances that helped in the war, former emperor is an elector, and so in doing so I gave one my buddy elector position.

So has anyone else accidentally become emperor?

 

[Amroth]

Couple patches ago i became Emperor as Brandenburg a bare year after taking neumark because the Austrian decided to die with a female heir, didn't change the laws so i was very confused 4PM Brandenburg which now has to fight off France.