He was born a prince and his birth name is Shakyamuni.
The recluse Gotama, Sakyamuni, Siddhatta.
Not even in your wildest dreams
Siddhartha Gautama is referenced by a number of different titles, but mostly as Buddha. Sometimes he is referred to as Sakyamuni Buddha where Sakyamuni (Sage of the Sakyas) is a refernce to the tribe he was born into (Sakya) or at times he is called Gautama Buddha, as you indicated, where Gautama is his family name. Both of these are used when referring to the actual historical person of Siddhartha Gautama as opposed to another enlighten person who has attained Buddhahood (who would be called a Buddha also).
It's undoubtly a reference to prince Siddharta from Sakyamuni, the One who became Buddha.
The historical Buddha is known by several names. His original name is said to have been Siddharta Gautama (with many variations on the spelling such as Gotama). He is also known as Sakkyamuni as he belonged to the Sakkya tribe. As in Christianity there are many Buddhist traditions and some believe there are other previous Buddhas before the historical, so there are many names.
Siddhartha Gautama was a prince. He was the son of King Suddhodana of a small region in northern India called Sakya(which is where he gets the title Sakyamuni Buddha).
He is also known as the Buddha.
Buddha fasted because he ate at the ceremonies. He then left his family to find out the cause of human suffrage. On his trip he started to fast very little.
He was Buddha. The founder of Buddhism.
Siddhartha Gautama, also known as Buddha
The most common name for Buddha is Siddhartha Gautama.
He is the founder of Buddhism. He is also known as Buddha.