Clan Blackadder is a Scottish clan from the Border region. The Blackadders of that Ilk were Border Reivers, involved in the deadly raids and feuds along the Anglo–Scottish border during the 15th and 16th centuries. Their base by the Blackadder Water was near Berwick-upon-Tweed, a town that changed hands 13 times between England and Scotland in the period 1147–1482.
