Complex sentence: In a strict sense, Tocobaga was the name of a chiefdom, its main town, and its chief, all of which were probably centered at the Safety Harbor site at the north end of Old Tampa Bay.
Split into simpler sentences: In a strict sense, Tocobaga was the name of a chiefdom, its main town, and its chief. The chief town of Tocobaga was probably the Safety Harbor site, at the north end of Old Tampa Bay.