Castiglioni was born in Itacurubí del Rosario and obtained a qualification in civil engineering from the Catholic University of Asunción.

[2] His national political career began in 1984 as leader of Colorado party's juvenile wing.

[4] On 21 January 2008, the Colorado Party electoral commission announced that Ovelar had won with 45.04% of the vote against 44.5% for Castiglioni.

Castiglioni said that he would never accept defeat, claiming to have proof that 30,000 votes in his favor were "stolen", and said that he would take the matter to court.

You can help Wikipedia by expanding it.This article about a Paraguayan engineer, inventor or industrial designer is a stub.