Guilherme Posser da Costa
Former Prime Minister of São Tomé and Príncipe
Guilherme Posser da Costa is a São Toméan who served as the ninth prime minister of São Tomé and Príncipe from 1999 to 2001.
Posser da Costa served as Minister of Foreign Affairs: 1987–1988, 1990–1991, and 1994–1996. He later served as Prime... Wikipedia
Born: 1953 (age 70 years), São Tomé, São Tomé and Príncipe
Previous office: Prime Minister of São Tomé and Príncipe (1999–2001)
Education: University of Coimbra
President: Miguel Trovoada; Fradique de Menezes