- Goutamiputra (son of Goutami), Vasishtiputra(son of Vasishti), Mathariputra(son of Mathari), Haritiputra (son of Hariti) were used multiple times and by Satavahana, Ikshvaku(looks like Sanskritization) and Abhira kings.
- But there was no correlation between mother's names of individual rulers and these titles. For example (kings belonging to Ikshvaku dynasty);
* Vasishtiputra Ehuvala Chantamula's mother's name was Bhattidevi
* Vasishtiputra Rudrapurushadatta's (Ehuvala's son) mother's name was Vammabhatta
* Haritiputra Virapurushadatta's (Ehuvala's son) mother's name was Kapanashri
From those examples we can clearly see that not only there is no connection with mother and the title but sons of the same father also do not inherit the similar titles(or first names). If we masculinise those names then we can make an interesting observation.
Vasishti -> Vasishta; Goutami-> Goutama; Hariti -> Harita; Mathari -> Mathara
And Vasishta, Goutama, Harita and Mathara were sages or law givers. These also represent Brahmin Gotra names. I think in old days it was a practice for the kings to take up the gotra of their Brahmin guru.
So these names have nothing to do with matriliny. Probably, that must be some weird way of representing their gotras as gotra represent descendancy from that particular sage.