bawn
A bawn is a fortified enclosure surrounding a castle or tower house, a common feature of Irish fortified residences from the late medieval period. The English term is derived from the Irish bábhún, meaning a protective enclosure or sanctuary.
Bawns were usually built as curtain walls enclosing a courtyard attached to a residence, often with projecting
Historically, bawns were constructed by Gaelic chiefs and Hiberno-Norman lords in the 13th to 17th centuries
The use of bawns declined with changes in warfare in the 17th century and with the gradual