The church has been closed to the public while essential conservation works are developed to prevent further loss of masonry and make it safe for visitors.
Mae'r eglwys ar gau i'r cyhoedd tra bod gwaith cadwraeth hanfodol yn cael ei ddatblygu i atal rhagor o gerrig rhag cael eu colli a'i gwneud yn ddiogel i ymwelwyr.