The name is Irish. Saérlaith
is a feminine given name, pp. 160-1, Corráin and
Maguire.The Beare Peninsula and Beare Island are located
on the coast of western Cork County. I've found it also
spelled as Bere and Beara and one site shows it as
Bearé.
Per pale pean and vert, in sinister a
bear rampant, an orle Or.
aérlaith
ierre