Complex sentence: Although Italica near Santiponce (in modern-day Spain) is often considered his birthplace, his place of birth remains uncertain, though it is known that he comes of a family with centuries-old roots in Hispania.
Split into simpler sentences: Although Italica near Santiponce (in modern-day Spain) is often considered his birthplace, his place of birth remains uncertain. However, it is generally accepted that he comes of a family with centuries-old roots in Hispania.