{{MathGenealogy|id=38586}}

Produces: MathGenealogy/doc at the Mathematics Genealogy Project

{{MathGenealogy|id=38586|title=Leonhard  Euler}}

Produces: Leonhard Euler at the Mathematics Genealogy Project

If the 'title' parameter is not supplied, the name shown for the person will be that of the Wikipedia page where the template is included.