It means "the responsible one"
Jack Krol died in 1994.
Jack Krol was born in 1936.
Julie Krol is 5' 6".
George A. Krol was born in 1956.
Janine Krol is 178 cm.
Ruud Krol was born on March 24, 1949.
Ruud Krol was born on March 24, 1949.
Joe Krol died on 2008-12-16.
Joe Krol was born on 1919-02-20.
Sebastiaen Jansen Krol was born in 1595.
Alexys Krol was born on February 2, 1993.
John Krol was born on 1910-10-26.