 Lachlan Maclachlan of that Ilk was succeeded by his son Archibald , who is reckoned as the fifteenth chief of the clan . In 1680 Archibald had his lands erected into a Barony by Charles II of England called the Barony of Strathlachlan which was centred on Castle Lachlan . To this day the chief of the clan is styled as Baron of Strathlachlan . 
