Gorgeous plate

This is a plate I fell in love with, it is a thick pottery type plate, which unfortunately has been damaged at the back because some one has tried putting holes in it to hang it up on the wall. I saw it and was intrigued by it, the colour of the blue is so dark, and the picture itself depicts three people standing by the riverside, i can only presume that is what it is. With a beautiful palatial type building by the side of them, and another one a bit in the distance. On the river is a boat/yacht. With tall cypress trees and what looks like a palm/willow tree it is gorgeous. Can any one tell me how old or what it is all about please.
Thank you for reading
Sue