Auckland Castle surprise finds....

[Imperial Dave]

Surprise wall find as years of Auckland Castle excavations end - BBC News https://share.google/UvMivBPKxUcJM7PMq

Ta-da....!

[Jim Webster]

Not so sure about the "like a big statement of wealth and power"
More 'they've hacked off a lot of tough people locally and are nervous'   

[Imperial Dave]

Also a possibility