What are noble claims in tribal wars

It is when a player posts in the noble planner or forum which village they are going to noble. Now this is an inbuilt feature in all tribes but has no in game effect but when another person who can see the noble planner goes to attack a village it will say something along the lines of 'Some one in your tribe has a claim on this village'. Most tribes will include a threat such as loss of rights or dismissal. They do this usually by saying I claim (Village in bb codes). Most tribes will have a limit as to how many claims you can make.