Siʹamese Twins:

Yoke-fellows, inseparables; so called from two youths (Eng and Chang), born of Chinese parents at Bang Mecklong. Their bodies were united by a band of flesh, stretching from breast-bone to breast-bone. They married two sisters, and had offspring. (1825–1872.)

Siamese Twins. The Biddenden Maids, born 1100, had distinct bodies, but were joined by the hips and shoulders. They lived to be thirty-four years of age.