This Commandery Prince position of Prince Xin has not been downgraded, because the original fief of Prince Xin was already small, just a single commandery, and he did not hold military power, merely serving as a scapegoat, akin to Lingde King.
Thus, Liu Cheng'an now inherits his father's Commandery Prince position, as for the former Lingde King, and Prince Anning, they have passed away.
"Mr. Zhao." Liu Cheng'an greeted Zhao Xing, still addressing him as a brother, even though he is a Prince and Zhao Xing merely a Marquis.
"Brother Liu." Zhao Xing replied, "I suppose you have guessed my intentions?"
"Aware." Liu Cheng'an said as he raised the official document in his hand, "Just about to send it out."
"Thank you." Zhao Xing cupped his hands in gratitude, then proceeded directly to the highest floor of the Hundred Soldiers Tower, where he intended to meet Luo Hou King.
