Bartholomeu Gomes da Fonseca - Please check

very nice job @Eliane!
yes yes I would say that it can be merged with the newly added female line,
let's hope that the new user doesn't panic, let's give him time to understand what Geni it is a little different from the other sites:
it is a single large world tree shared in multi administration.

after merge
2009 Diogo da Fonseca Coutinho
2024 Diogo da Fonseca Coutinho

there will be an extra new wife,
Betaça ou Vataça de Soverosa, Senhora de São Romão, Torre de Óis e de Torredães

maternal conflict for merged Joana Mendes da Fonseca, ("da Vila" ou D'Ávila) ...

here, going down from the Italian side ( Guillaume Pierre Ventimiglia, seigneur de Tendé ) to there, I found something from the various Wikipedias to report in the about info.

hoping to be useful to your PT side, because in reality I completed the merges without conflicts above.

If you feel like it, you can start directly with Bartholomeu's daughter:

2024 Maria da Fonseca
2010 Maria da Fonseca

but right there, there is a mother's conflict for her.

Thanks @Livio

Betaça married to Fonseca Coutinho is the same person as Vataça ("da Vila") married to Fonseca Coutinho. Sometimes some books or some genealogy will be used one way to write the name or the other.

It's because the archaic Portuguese was under development, and sometimes we find B instead of V, for example.

Another typical case is the change of OU for OI: like "louro" later on more common "loiro".

I could find out that Vataça married to Guillaume Pierre Ventimiglia had several female descendants with her name.

And also that the Coutinhos, Fonsecas, and Azeredos used to marry between themselves. Well, something quite common for centuries and centuries.

So, I hope the lineage is much more clear now. For sure goes back to the Vataça Láscaris (Laskaris).

Thanks for the help.

it's already here, it's all your land,
also on how surnames are passed down differently in my area,
I give you my blessing to do your best to merge and then resolve data conflicts by choosing field by field as best you can :D