Brenin is a unique and historical given name of Welsh origin, derived from the Brythonic word 'Brenhin' which means 'king'. It was traditionally used as a title rather than a personal name in ancient Wales. In recent times, however, Brenin has been adopted as a first name, adding a touch of royal elegance to its bearers.
"The name Brenin experienced a peak in popularity between the years of 2004 and 2009, with over ten births recorded each year during this period. However, since then, the number of births has fluctuated, ranging from six to thirteen per year."