Porter would only be capitalized if it were someones name.
in The King ***
Yes
yes
No. It's not necessary.
No.
No.
The only time you would capitalize the word south is if it were at the beginning of a sentence or part of someone's name.
No. When simply referring to a podiatrist, there is no need to capitalise it. It would be capitalised if it was part of a title on a sign, such as "T.M.Smith, Podiatrist".
If a person is referring to the monarchy system of government, it isn't necessary to capitalise it. However, if the person is referring to the British Monarchy itself, then it is proper to capitalise it.
You do, because they are proper nouns.
Capitalise the cardinal directions when they are referring to a specific region of a country (eg: Northwest America). Do NOT capitalise if they are used as directions (eg: Looking north...).
Greek Mythology or Greek Myth.