What events influenced and shaped the drafting of the Edict of Nantes?

Although Henri of Navarre had effectively won the French Wars of Religion by 1589,he was a Protestant (French Protestants were known as Huguenots),and there were no other viable candidates for King of France,as the vast majority of the French population and nobility were Catholic,Henri was unacceptable as king.

He therefore converted to Catholicism,but this alienated his Huguenot power base.The Edict of Nantes (1598) granted religious toleration to French Huguenots,and guaranteed them control of a certain number of fortresses.

A combination of Henri's conversion to Catholicism and the Edict of Nantes enabled a political and religious settlement acceptable to all to definitively end the French Wars of Religion.

The Edict of Nantes, signed April 13, 1598, gave religious freedom to the Huguenots.

Henry IV signed this after the French Wars of Religion. This was basically a (unilateral) Peace Treaty to stem further political/religious strife.

It was rescinded, by the way, when Louis XIV signed the Edict of Fontainbleau on October 18, 1865.