The ninth Avatar of Vishnu.

His name was Siddharta, son of King Suddhodana from the to Surya vamsa belonging Shakya dynasty, hence his name Shakyamuni, the wise of the Shakya. His name Gautama refrens to Gautama gotra.

Suddhodana was regent of Kapilavastu, married with Maya. She died after giving birth. Suddhodana married her sister, Gautami.

He was born in Lumbini and died in Kushinagar.
Supreme knowledge he attained in Bodhgaya, at that time called Uruvela.
Now he was an awakened, a Buddha.
His first discourse he gave in Sarnath.
He was married with Yasodhara, their son was Rahula, but he left them.
As a prince his charioteer was Chandaka, his favorite horse Kanthaka.

Read all about Buddha here – The great chronicle of the Buddhas.