Zerach Warhaftig was the longest serving minister, holding the post for over 12 years between 1961 and 1974.

She was the longest serving prime minister of the 20th century.

He says that he became the world's youngest serving prime minister when he took office at age 36.

Dumbuya served as foreign minister twice; for a brief time in 1992 and from 2001 to 2002.

Serving until 1971, he is the longest serving foreign minister in Liberian history.

Till date he remains as the longest serving chief minister of Maharashtra.

Pigneau also served as an advisor and de facto foreign minister until his death in 1799.

He was now to become the longest serving prime minister in Australian history.

He is believed to be the first serving prime minister to have ever done so.

Koizumi was the third longest serving prime minister in the history of Japan.