Namesakes
L. L. Zamenhof
(a.k.a. Ludwik) (m) 1859-1917 
Notable Philosophers and Thinkers
Ludwik I
(m) 1326-1382
Polish High Dukes and Kings 1370-1382
Zdzisław Krzyszkowiak
(a.k.a. Ludwik) (m) 1929-2003
Olympic Medalists 1960 3000 m steeplechase (gold)