Here is the flag of Grodzisk Mazowiecki city, in Grodzisk Mazowiecki county,
Mazowieckie vojvodship, as shown in Znamierowski's "Insygnia, Symbole
i Herby Polskie", Warszawa 2003. Coat of Arms at the city's
website, where it is called "znak herbowy rodziny Mokronoskich".
Flagdescription: white with the city arms in center.
Arms: gules two arrowheads argent in chief and in base.
Jarig Bakker, 15 Apr 2008