Donal Cam O'Sullivan Beare

Donal Cam O'Sullivan Beare, Prince of Beare, 1st Count of Berehaven (1561–1618) was the last independent ruler of the O'Sullivan Beara sept, and thus the last O'Sullivan Beare, a Gaelic princely title, in the southwest of Ireland during the early seventeenth century, when the English crown was attempting to secure their rule over the whole island.