my granda has/have a beatiuful yard at the back of her city
The King had a royal ministre in the castle
many people from royal family came to my house
The royal family had a feast to celebrate the king's birthday.
the king and queen lived in a Royal way. or The king wear royal robes.
A royal colony is an establishment by royal command. The royal colony grew into a great city.
The queen bowed and as her crown glistened, and everybody in the hall could see how royal she was. I am royal in my own right.
I think that that royal winked at you. The Royal Flush won that hand.
The courtier to the king was looking as royal as him. This is a sentence containing courtier in it.
Yes it should be capitalized.
there are privileges appertaining to the Royal family
satrap is a royal governor in the Persian empire.