The decades-long dynastic dictatorship of the Somoza family in Nicaragua was brought to an end in 1979 by what revolutionary group?

Sandinistas

The Sandinista National Liberation Front (FSLN) was named after Augusto César Sandino, who led a rebellion against U.S. military occupation in the 1930s. Their victory led to a socialist government that faced opposition from U.S.-backed 'Contra' rebels during the 1980s.