He died in a helicopter accident by the shore near Angra dos Reis, in the south of Rio de Janeiro state.

[1] Ulysses Silveira Guimarães was born in the village of Itaqueri da Serra, today a district of Itirapina, which was then part of Rio Claro, São Paulo State.

Guimarães held the Ministry of Industry and Trade at the office of Tancredo Neves, during the short parliamentary experience in Brazil (1961-1962).

In 1973, he launched his symbolic "anticandidacy" to the presidency for the 1974 election as a form of repudiation of the military regime, having as running mate the journalist and former governor of Pernambuco, Barbosa Lima Sobrinho.

On November 29, 1976, at the Plenary Tiradentes of the Legislative Assembly of São Paulo, he founded OPB - Order of Parliamentarians of Brazil, a class association without partisan, religious or social ties, of which he is patron.

Ahead of the party, he has participated in all campaigns for a return to democracy, including the struggle for broad, general and unrestricted amnesty.

Together with Tancredo Neves, Orestes Quércia and Franco Montoro, Guimarães led new campaigns by democratization such as direct elections, popularly known by the slogan: Diretas Já.

The political articulations of the era ultimately led to the election of a "mixed" ticket with Tancredo Neves as PMDB presidential candidate and José Sarney, ex-PDS/Frente Liberal, as running mate.