Ballyvoghan Castle was originally a stronghold of the Norman family of Herbert/Hubbert.
The ruin today measures roughly on the inside 24 feet by 19 feet 6 inches. The walls are now only 25 feet high. Ballyvoghan fits into the category of truncated castles
https://www.ouririshheritage.org/content/archive/place/limerick-castles-database-archive/ballyvoghan-castle