A jongga is a family that can trace its line of progenitors back to a single distinguished ancestor. The eldest living son of this main lineage is the jongson, and his wife is the jongbu. This couple is charged with performing numerous ancestral rites and entertaining the numerous guests that visit the jongga. Many families have preserved this tradition even through the turbulence of Korean modern history and the prevalence of nuclear family culture brought on by industrialization.