Meyler was a great-grandson of Robert de Bermingham who is said to have obtained a grant of Offaly from Strongbow or Henry II about 1172.
Robert's son (Meyler, killed 1211) and grandson (Peter, died 1254) were both described as of Tethmoy, which is thought to have been the baronies of Warrenstown and part of Coolestown.
Rickard's eldest son, John, was also killed at Bragenstown but was succeeded by his brother, Thomas de Bermingham.
Meyler's senior descendants ceased with the death of Thomas, 19th Lord Athenry, in 1799, but the name is still common in Galway via junior branches.
Available evidence indicates that Myler's ancestor could have been one Richard, alive in 1066 and recorded as holding four hides of land at Birmingham as a Knight-service in 1086 for William fitz Ansculf.