How did surnames persist when the original line ended?
This is a very basic question, but I cannot find an answer. My surname, Power,( hello, Waterford!) is said to indicate descent from the de la Poer Norman family that held a large part of Waterford from the estate called Curraghmore. There are maybe millions of us.
( My own g-gfather left Waterford for the US in 1874.None of his brothers stayed in Waterford, so I’m not closely connected to Power families living there now)
However, the last Marquess of that name died in 1704. He left a daughter who married a Marquis Beresford. Therefore, No more Power descendants.
So how did all of us contemporary Powers come by the name? Are we descended from younger sons born n the 17th century? Did the peasants on Power lands take the surnames of their masters? Was there a church or civil rule that determined surname usage?
Thanks in advance for your explanations
