Some factual errors, but most simply due to often repeated incorrect original source material. However, a big error here is the fact that Lazarus Colloredo and Joannes Baptista Colloredo were not conjoined twins. Their case is an example of parasitic twinning.
Also, considering Siam no longer exists, the term 'Siamese Twin' is not only politically incorrect and medically inappropriate, it's now also a physical impossibility.
Also, considering Siam no longer exists, the term 'Siamese Twin' is not only politically incorrect and medically inappropriate, it's now also a physical impossibility.