Lord Yan's Mansion was what was scribbled on the board at the gate. The words were not written by the King, but by the head of the Ministry of Rites.
Normally, it should be the King who wrote the board for a lord's mansion, or at least the Empress Dowager or some very respected people from noble families. The calligraphy had to be meaningful, so that it could be called the name for a lord's mansion.
For example, Lord Huai's Mansion.
The board was written by General Jiang, who was the Queen's father and who had made many achievements on the battlefields. So it was totally reasonable when he wrote the words.
And the board by Lord Ling's Mansion was written by the King, which was a great honor for the lord.
Even the board of Lord Yu's Mansion was written by the Queen, though the Empress Dowager was not interested and the King had no intention.
However, Lord Yan's Mansion….
