Lookalikes! Beethoven Anton Rubinstein"
Beethoven’s b******’ he was sometimes called, due to the supposedly striking physical resemblance between Anton Rubinstein and posthumous mentor". (Jeremy Siepmann,BBC Music Magazine)
That would have been quite an achievment, even for Beethoven, considering he died in 1827 and Rubinstein wasn't born until 1829. I don't think they had fertlity laboratories with suitable storage facilities in those days! [Thinks: I must be careful or I will get relegated to the off-topic bin again.]