sentences:  It was named in commemoration of the marriage of King George III to Charlotte of Mecklenburg-Strelitz, for whom the county seat Charlotte is named.Due to unsure boundaries, a large part of south and western Mecklenburg County extended into areas that would later form part of the state of South Carolina.In 1768, most of this area (the part of Mecklenburg County west of the Catawba River) was designated Tryon County, North Carolina.