Simplify the following text for a Grade 11 native English-speaking person.
Original: James Martin Pacelli McGuinness ( born May 23 , 1950 in Derry , Northern Ireland ) is an Irish politician who is the Deputy First Minister of Northern Ireland .
Simplified: James Martin Pacelli McGuinness ( ; born Derry , 23 May 1950 ) is an Irish Sinn FÃ in politician and the current deputy First Minister of Northern Ireland .