 Most scholarship concerning the date of Herod's death follows Emil Schürer's calculations, which suggest that the date was in or around 4 BCE; this is three years earlier than the previous consensus and tradition (1 BCE).Two of Herod's sons, Archelaus and Philip the Tetrarch, dated their rule from 4 BCE, though Archelaus apparently held royal authority during Herod's lifetime.Philip's reign would last for 37 years, until his death in the 20th year of Tiberius (34 CE), which implies his accession as 4 BCE.