[source: The Calvin Handbook, p. 

CALIVINIST CHURCH HAD GENDER-SEGREGATED SEATING
(In 1555 the Council complained that this arrangement was not being followed; 
that instead the men were sitting toward the front and the women toward the 
back.) Exceptions to gender segregation could be made for worshipperes who had 
reported difficulty hearing the sermons. The other notable exception to gender 
segregation was made for politicians and dignitaries, who sat in assigned chairs 
at the ery from of the space.
[source: The Calvin Handbook, p. 410]