Dermod O'Brien, 2nd Baron Inchiquin Irish baron (1550–1557) Parents Murrough O'Brien, 1st Earl of Thomond Eleanor fitz John Children Murrough McDermot O'Brien, 3rd Baron Inchiquin Siblings Slany O'Brien Ranelt O'Brien Torlogh O'Brien Teige Mac Murrough O'Brien Margaret O'Brien Honora O'Brien unknown daughter O'Brien Aine O'Brien Donogh McMurrough O'Brien Partners Lady Margaret O'Brien