Fausto Sozzini

Fausto Paolo Sozzini, or simply Fausto Sozzini, was an Italian Renaissance humanist and theologian, and, alongside his uncle Lelio Sozzini, founder of the Nontrinitarian Christian belief system known as Socinianism. His doctrine was developed among the Polish Brethren in the Polish Reformed Church between the 16th and 17th centuries, and embraced by the Unitarian Church of Transylvania during the same period.

5 December 1539

Born on the same birth day (5 December): A. J. Pollock • Anne Cecil • Duane Ross • Eduard Seler • Fyodor Tyutchev • Jack Russell (musician) • Kim Simmonds • Nikolai Uglanov • Ondrej Duda • Ramón Ramírez (footballer) • Tina Charles (basketball)

Born in the same month (December 1539): John Radcliffe (died 1568)