Complex sentence: In 1846, he officially changed his name to David Levy Yulee (adding his father's ancestral Sephardic surname) and married Nannie C. Wickliffe, the daughter of Charles A. Wickliffe, former governor of Kentucky and Postmaster General under President John Tyler.
Split into simpler sentences: In 1846, Levy officially changed his name to David Levy Yulee (adding his father's ancestral Sephardic surname). That year he married Nannie C. Wickliffe, the daughter of Charles A. Wickliffe, the former governor of Kentucky and Postmaster General under President John Tyler.