Complex sentence: Baltasar Hidalgo de Cisneros was born on January 6,1756, which is the religious feast of Epiphany day, Hence he was named Baltasar after one of the Biblical Magi.
Split into simpler sentences: Baltasar Hidalgo de Cisneros was born on January 6,1756. As he was born during the Epiphany day, he was named Baltasar after one of the Biblical Magi.