The Basque family of Tellería was first noted in the Gipuzkoan county of Vergara in the 16th centuryTellería entry, [in:] Heraldry Institute service, available here and parish documents confirm their presence in the town of Antzuola since the early 18th century.the first Tellería noted in the parish documents appears in 1716, see Tellería/Antzuola baptism certificates, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here The first direct ancestor of Agustín which can be traced is his strictly paternal great-grandfather Silvestre Antonio Tellería Ugalde, married to Clara Ignacia Lascurain ArgarateManuel Ygnacio, Telleria, Lascurain entry, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here and living in Antzuola in the early 19th century. His son and Agustín's paternal grandfather, Miguel Ignacio Telleria Lascurain (born 1807),Partida de Bautismo de Miguel Ygnacio Tellería Lascurain, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here married Maria Oyarzabal Idiazabal.Partida de Bautismo de Jose Cipriano Telleria Oyarzabal, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here None of the sources consulted provides any information on what they did for a living; the couple settled in their native town and had at least 9 children, born between 1833 and 1854.the first one listed, Agapita María Tellería Oyarzabal, was born in 1833; the last one listed, Agustín Rufino Tellería Oyarzabal, was born 1854; see baptism certificates of Tellería Oyarzabal/Oiarzabal, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here Their third son and Agustín's father, Jose Cipriano Telleria Oyarzabal (1849–1938),Kepa Oliden Arrasate, Antzuola, un pueblo de zurradores, [in:] El Diario Vasco 31.03.13, available here in 1877 married Micaela Ynurrita Gorosabel;Partida de Matrimonio de Jose Cipriano Telleria Oyarzabal con Micaela Ynurrita Gorosabel, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here the couple had 2 children, both daughters.see baptism certificates of María Josefa Telleria Ynurrita (1878) and Juana María Telleria Ynurrita (1880), [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here Following early death of his wife in 1882,Partide de Defunción de Micaela Ynurrita Gorosabel, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here one year laterPartida de Matrimonio de Jose Cipriano Telleria Oyarzabal con Maria Esteban Mendizabal Elgarresta, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here Telleria Oyarzabal re-married with Maria Esteban Mendizábal ElgarrestaPartida de Bautismo de Agustin Candido Telleria Mendizabal, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here (died 1913),El Correo Español 23.08.13, available here a girl from the nearby village of Urretxu and descendant to a family which already had been related to the Tellerías.the Tellerias and the Mendizabals from Gabiria and Segura used to intermarry since the late 18th century, see baptism certificates for Telleria Mendizabal, [in:] Donostiako Elizbarrutiko Artxibo Historikoa service, available here
