That person is called a guide.
A person born into a certain family or group is usually referred to as a member or offspring of that family or group.
A portrait :)
Chauvin is a French word that is meant to describe a person who is aggressive or shows prejudice to a certain group of people. Someone who is racist can be called a Chauvin.
committee
We call this ethnic cleansing.
A group of people following a rich person is often referred to as their entourage or followers.
Person is human and personnel are group of people willing to obey certain orders
It's called a dictatorship.
A group of territories controlled by one person is called an empire.
They are called `lobbyists`.
A group of people who have elected someone else to represent them is called an incumbency. This person will serve as an official post.
Personal troubles generally are trouble that affect a certain person or group of people on a personal level.