"Karl Ferdinand von Gräfe,[a] (March 8, 1787 – July 4, 1840), was a German surgeon from Warsaw.
He was the father of ophthalmologist Albrecht von Graefe (1828–1870) and grandfather of politician Albrecht von Graefe (1868-1933).[citation needed]Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page)." - (en.wikipedia.org 04.11.2019)
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