Recently, Prussia has been noticeably more cordial to Ernst. Before even returning to Hohenzollern Castle, Ernst was already informed of an invitation from the Prussian royal family to visit Berlin.
Ernst had long anticipated Prussia's intentions, and thus, he made a detour from Bavaria towards Berlin.
Kingdom of Prussia.
"Ernst, how have you been lately?" William I said with a cheerful smile.
"Your Majesty, I've been well, though quite busy with business recently." Ernst replied.
"Just call me uncle. Your father is also a king now, making you the Crown Prince, and we're all part of the Hohenzollern family. There's no need to be so formal," William I said.
"I'm afraid that might not be appropriate!"
"What's inappropriate about it? We're all family here. In private, you can call me uncle, and in formal occasions, you can address me as Your Majesty."