To answer this question I will write a list with the vocabulary for the relatives in Spanish:

-Los parientes: The relatives
-padre, papa: father, dad
-madre, mama: mother, mom
-hijo / hija: son / daughter
hermano / hermana: brother / sister
tio / tia: aunt /auntie
primo / prima: cousin
sobrino / sobrina: nephew / niece
abuelo/abuela: grandfather / grandmother
cuñado / cuñada: brother in law / sister in law
marido / esposa: husband / wife
bisabuelo / bisabuela: great grandfather / great grandmother