Beethoven had no acknowledged or suspected children.He did obtain legal custody of his brother's son, Karl, after his brother died.
Maria Magdalena Keverich, but if you had looked at his entry in wikipedia you would have found out long before reading this.
Frank
Perhaps because just Gogh would feel too short.
The 'van' in Beethoven's surname is similar to the Scottish use of 'Mac' in their surnames, for example MacMillan. Here the 'Mac' means basically 'son/daughter of' and the 'van' in Beethoven's name...