Question about English name.

Sir Winston Leonard Spencer-Churchill KG, OM, CH, TD, DL, FRS, RA (30 November 1874 – 24 January 1965) was a British politician who was the Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. Widely regarded as one of the greatest wartime leaders of the 20th century, Churchill was also an officer in the British Army, a historian, a writer (as Winston S…

Question: I 've never seen such a long and complex name as this →

Winston Leonard Spencer-Churchill KG, OM, CH, TD, DL, FRS, RA.
What is the meaning of "those" : what is his family name?
his first name?… and especially the KG, OM, CH, TD, DL, FRS, RA??

what is the correct order to arrange one's whole ?or total ,or full name?
the order of chinese name is :family name + first name , for example, 王俊凯，
王→ family name.
俊凯→ first name.
we chinese often call ones first name friendly to replace full name, for example , 王俊凯→
if he is a teacher we call him as teacher 王(Wang),
if he is young , call him as 小王 ( little Wang*).
if he is a good friend of mine, or our colleagues,we call him 俊凯。
What about one's english name in those aspects?

Question

Question about English name.

Sir Winston Leonard Spencer-Churchill KG, OM, CH, TD, DL, FRS, RA (30 November 1874 – 24 January 1965) was a British politician who was the Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. Widely regarded as one of the greatest wartime leaders of the 20th century, Churchill was also an officer in the British Army, a historian, a writer (as Winston S…

Question:  I 've never seen such a long and complex name as this →

Winston Leonard Spencer-Churchill KG, OM, CH, TD, DL, FRS, RA.
What is the meaning of "those" :  what is his family name?
his first name?… and especially the KG, OM, CH, TD, DL, FRS, RA??

what is the correct order to arrange one's whole ?or total ,or full name?
the order of chinese name is  :family name + first name , for example, 王俊凯，
 王→ family name.
俊凯→ first name.
we chinese often call ones first name friendly to replace full name, for example , 王俊凯→
if he is a teacher we call him as teacher 王(Wang), 
if he is young , call him as  小王 (  little Wang*).
if he is a good friend of mine, or our colleagues,we call him 俊凯。
What about one's  english name in those aspects?

Answer

In English, names are written like this: First Name, (Middle Names if applicable), Family Name. Not everyone has a middle name, some have more than one. We also sometimes refer to our family name as Last Name, because it comes last.

The letters after Winston’s name are military titles or awards given by the crown, and you can ignore them, they would only be used in very very formal situations or in written English when introducing him.

Winston is his given name, so people who are very familiar with him may have just called him Winston. Churchill was his family name, so he may have been called Mr Churchill or Sir Churchill by others. Sometimes he could just have been called by his family name.

The middle names (Leonard Spencer) generally aren’t used, so it’s unlikely people would have called him by those names.