Imagine tracing your family tree back to medieval kings and discovering it's as common as a Derby hat in Kentucky.

While U.S. surnames often hide royal roots from European nobility, Kentucky hosts surprising numbers of these "crowned" names.

From Plantagenet princes to Tudor queens, here's how 18 royal-linked last names populate Kentucky today.

Here are 18 surnames with connections and an estimate for the number of people in Kentucky who bear the surnames (don’t let me down Perplexity).

NOTES: Estimates from U.S. Census-derived sites like Forebears and MyNameStats (proportional to KY's 1.4% of U.S. pop ~330M).

Noble British Lines

Howard (England, Dukes of Norfolk): ~12,630 in KY

Seymour (England, Dukes of Somerset): ~150 in KY

Percy (England, Dukes of Northumberland): ~40 in KY

Byron (England, Barons Byron): ~50 in KY

Grosvenor (England, Dukes of Westminster): <20 in KY

Fitzroy (England/France, "King's son"): ~30 in KY

Scottish and English Royals

Bruce (Scotland, King Robert the Bruce): ~400 in KY

Campbell (Scotland, powerful clan): ~5,000 in KY

Spencer (England, Earls Spencer): ~700 in KY

York (England, House of York): ~250 in KY

Lancaster (England, House of Lancaster): ~150 in KY

Other Notable Connections

Russell (England, Dukes of Bedford): ~2,000 in KY

Tudor (Wales/England, Tudor dynasty): ~40 in KY

Windsor (England/Germany, current royals): ~100 in KY

Plantagenet (France/England, medieval kings): <10 in KY

Boleyn (England, Anne Boleyn line): ~20 in KY

Stewart/Stuart (Scotland/England, Stewart kings): ~1,000 in KY

Sinclair (Scotland, noble earls): ~100 in KY

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