Complex sentence: Tryon had an extremely lavish home built in 1770 in New Bern (now known as Tryon Palace), which became one of the main points of resentment for the Regulators, who were already paying substantial taxes.
Split into simpler sentences: Tryon had an extremely lavish home built in 1770 in New Bern (now known as Tryon Palace). This was resented by the Regulators, who were already paying substantial taxes.