On June 17th, 1789, members of the third estate seceded from the Estates General and declared themselves to be the Revolutions and National States in the Atlantic World On June 17th, 1789, members of the third estate seceded from the Estates General and declared themselves to be the a. House of Commons. b. Convention. c. National Assembly. d. Directory. e. House of Representatives. Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+