T'Pel (wife of Sasak)

T'Pel was the wife of Sasak and mother of Selek, a distant cousin of Sarek. (TAS: "Yesteryear")

Selek was, in reality, the indentity assumed by Spock when he traveled to his past, through the Guardian of Forever, in order to save himself from otherwise being killed by the le-matya. The names "Selek", "T'Pel" and "Sasak" could possibly be true distant cousins of Sareks family, as it would be illogical for Spock to lie about such facts.