Alexander Grothendieck

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</image> <group> <label>Aliases</label> <label>Relatives</label> <label>Affiliation</label> </group> <group> <header>Biographical information</header> <label>Marital status</label> <label>Date of birth</label> <label>Place of birth</label> <label>Date of death</label> <label>Place of death</label> </group> <group> <header>Physical description</header> <label>Species</label> <label>Gender</label> <label>Height</label> <label>Weight</label> <label>Eye color</label> </group> </infobox>Alexander Grothendieck (1928 - 2014) was an anarchist and mathematician who is widely regarded to be the greatest mathematician of the 20th century.