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First First Lady of more than one country

First First Lady of more than one country
Who
Graca Machel
What
First
Where
South Africa
When
1998
Graca Machel was married to Samora Machel (1933-86), President of Mozambique from 1975 to 1986. President Machel was killed in a plane crash on 19 October 1986. On 18 July 1998 she married Nelson Mandela, President of South Africa, making her the first woman to be `First Lady' of two different countries.