Hi Ivorglyn
I've had a look at the parish records and can see:
Powys Marriages in CEMAIS, Montgomeryshire - Robert Lloyd, bachelor of the parish of Llanfair and Lowry William, spinster of this parish, were married in this church by Banns on the 20th day of March in the year of our Lord 1780, by me Mr Pugh, curate. In the presence of Hugh Evans and David Griffiths.
Baptisms - John Lloyd son of Robert Lloyd and Lowry his wife was baptised 2nd May 1780 at LLANBEDR. I cannot see a baptism in the same place in 1782 for Anne, but I can see a baptism in Llanenddwyn of Anne, to Robert Lloyd, labourer and Lowry on 19th December. However, I can then see further baptisms to Robert and Lowry in Llanenddwyn (Robert 1785; Lowry 1787), so could this be a different couple with the same names if your Robert died in 1781, unless she married another man with the same name?
Mar