Niall mac Cailein Nobleman in the Scottish war of Independence (1250–1316) Parents Afraig a Charraig Cailean Mór Children Dougal Campbell Sir Colin Campbell of Lochow John Campbell, Earl of Atholl Duncan Campbell Macdonnachie of Inverawe Douglas Campbell Siblings Domhnall mac Cailein unknown daughter Campbell Duncan Campbell Sir Arthur Campbell Gillespic Campbell Sir Dugald Campbell Donald Campbell Partners Mary Bruce Margaret Cameron unknown daughter Crawford