Samhradhán, son of Conchobhar, was the progenitor and chief of the McGovern Clan and Baron or Lord of Tullyhaw barony, County Cavan from c.1082 to c.1115.
The clan is named after him, Mág Samhradháin, meaning the son of Samhradhán.
[1] Poem 2, stanza 9, by Giolla Pádraig mac Naimhin, written c.1290-1298, in the Book of Magauran describe Samhradhán as bright and noble.
[2][3] Samhradhán lived in Moneensauran townland, Glangevlin, County Cavan.
The townland is named after him (from Irish Moinín Samhradhain, meaning 'Samhradhán's little bog').