Together with Gautama Buddha and his fellow bodhisattva Mañjuśrī, he forms the Shakyamuni trinity in Buddhism.
He is the patron of the Lotus Sutra and, according to the Avatamsaka Sutra, made the ten great vows which are the basis of a bodhisattva.
In Japan, this bodhisattva is often venerated by the Tendai and in Shingon Buddhism, and as the protector of the Lotus Sutra by Nichiren Buddhism.
In the Nyingma school of Tibetan Buddhism, Samantabhadra is also the name of the Adi-Buddha - in indivisible Yab-Yum with his consort, Samantabhadrī.
GM Lu has scheduled abhiseka for this yidam as well as Vajrapani over the next 2 weekends.
Best to do some research before you receive Abhiseka, agree?
Om Guru Lian Sheng Siddhi Hom