María del Mar Sánchez
María del Mar Sánchez( born 25 December 1979) is a Spanish athlete.
She competed in the women's pole vault at the 2000 Summer Olympics.
María del Mar Rey
María del Mar Rey( born 29 September 1968) is a Spanish former volleyball player who competed in the 1992 Summer Olympics.
María Ballesteros
María del Rosario Ballesteros( born 30 October 1956) is a Mexican former swimmer.
She competed in two events at the 1972 Summer Olympics.
Marqués de Santa María del Villar
Diego Quiroga y Losada," Marqués de Santa María del Villar",( Marquess of Santa María del Villar), was born in Madrid in 1880 and died in San Sebastián in 1976.
He took pictures of many places of Spain, its landscapes, monuments and people.
María del Refugio García
María del Refugio García( ca. 1898 – 1970) is an important figure in the early struggle for women's rights in Mexico.
María del Puy
María del Puy Alonso González( 1941 – 25 November 2015), known artistically as María del Puy, was a Spanish actress.
Marianela González
Marianela González( born 23 July 1978 in Caracas, Venezuela) is a Venezuelan actress and model.
Now lives in Colombia.
Her parents are María del Carmen Álvarez" Carmenchu" and José Rafael González.
She has one sister named María Alejandra.
She is best known for her role as Pandora Villenueva in the telenovela" Mi Gorda Bella and Renata in the novel La Traicionera".
María del Carmen González
María del Carmen González( born 6 April 1941) is a Spanish gymnast.
She competed in six events at the 1960 Summer Olympics.
María del Carmen Martín
María del Carmen Martín( born 1 September 1976) is a Spanish field hockey player who competed in the 2000 Summer Olympics and in the 2004 Summer Olympics.
Melchor Chavez
Melchor" Mel" Gongora Chavez is a Filipino politician and perennial candidate and radio and print journalist.

Question: Are María Del Refugio García and Melchor Chavez of the same nationality?
Answer: no