There is no such thing as the castle system. There is however the caste system Is this what you are referring to?
There is no significance. You should be more worried about getting laid than wondering if America has a castle system
Aryan
He wanted to bring peace to the Hindu castle
In varrock east of the castle.
Brahmin
Castle 4600 sidewinder
untouchables
Religion
* Formal * Servental * and guard
There are many examples of a pulley system such as a drawbridge in a castle or a set of rock climbing gear
becausethe they we dumb