Marc Andreessen — Education: University of Illinois Urbana–Champaign; New Lisbon High School

NoteThe Wikidata source directly confirms both educational institutions listed in the claim. The 'educated at' section explicitly lists both 'University of Illinois Urbana–Champaign' and 'New Lisbon High School' as Marc Andreessen's educational background. The source provides additional context (computer science major, 1993 graduation, bachelor's degree) but does not contradict the claim. The claim is a straightforward listing of these two institutions, which the source fully supports.