nl. Abbaye de Langonnet.
●(1865) FHB. 35/280a. e couent Langonet.
●(1911) BUAZmadeg 659. Dont a reaz da gouent Langonnet. ●(1934) SMLC 75/refrain. Enor abati Langonnet / Hag enor hor bro Breiz-Izel, / O zant Moris, patron karet / Hor zikouret da vout santel. ●80/11a. Couvand Langonnet er guélas bamdé.