Hi!
I really appreciate your help!
Cicely was right!
With that information I was able to find:
Margaret baptised by Richard Wathan, Shopkeeper, and Cicely at St John's Brecon in 1805.
(This corresponds to Richard Wathan, shopkeeper, Brecon one of the Bondsmen on William Williams Will).
Richard was probably born in Llanfihangel Nant Bran, and moved to Brecon after he married Cicely Williams around 1800.
They had three children: they were were Margaret 1805 - and Roger 1802- 1825, and a third one William age 20 in the 1841 Census
Amazing what I could find out once you deciphered sis!
Cheers,
Llanfi
