Santiago Alonzo & Josepha Alonzo de los Ynofas (Hinojos)

The baptismal record for Maria Theresa Alonzo, child of Diego Alonzo and Juana Martinez de Sotomayor, born 11 Oct 1736 (Estanzuela), and baptized 11 Nov 1736 in Aguascalientes (Capilla de la Hacienda Peñuelas) includes her padrinos, Santiago Alonzo and Josepha Alonzo. Can anyone inform me as to their relationship - married, or sister/brother? Other?

Thank you.

Paul Gomez