18 degrees is my closest connection to both Elizabeth Tudor (queen) and St. Elizabeth Ann Seton (saint and educator). My 12th great-grandmother was married to the brother of the wife of Henry Fitzroy, King Henry VIII's illegitimate son, making the fairly close connection over so much time.
Elizabeth Tudor is also a cousin--4th cousins, 15 times removed
Other cousins in this group:
Elizabeth Montgomery (fabulous actress!)--9th cousins, 3 times removed (adored watching her as a child)
Dame Elizabeth Frink (sculptor)--13th cousins, twice removed
Countess Elizabeth Bathory (accused murderess)--13th cousins, 14 times removed