Suffragettes had to win allies in male-only Parliaments
Campaigners needed to win allies in the all-male Parliaments of the day.
Why did the politicians eventually agree to change the law in 1918 giving women the right to vote?
Find out on "Suffragette Allies" on BBC Parliament at 8.30pm on Sunday 11th February.
Telling the story is former Commons Deputy Speaker, Natascha Engel.