I mean Henri V. The Thirty Years' War ended in 1624 in ATL. The Twenty Years' War is from 1640 to 1660 (peace was signed in 1661, but the cessation of hostilities during negotiation was about a year long). During the war, Louis XIII dies in 1644. He has only one child in ATL, named Louis, who dies later that year. Gaston was in open rebellion against Louis XIII and XIV and was an enemy of Mazarin, so Mazarin and his allies skip over him and crown Henri II, Prince of Condé as Henri V. Anne of Austria and most of the remaining nobility switched to supporting Gaston after Louis XIV died. Henri dies in 1646. His son, Louis XV (le Grand Condé), is established as the only ruler of France and Guyenne by treaty. During the war, a group of Guyennese nobles maintained a secret correspondence with Phillip IV, offering to rebel and install Balthasar Charles as King of Guyenne. Bathasar was the son of Elisabeth of France, a sister of Louis XIII, and therefore the legitimate heir in Guyenne (but not in France) if Gaston was not considered legitimate. However, they wanted Balthasar to abdicate from his Spanish titles and renounce the Spanish throne. Philip did not agree to that condition, so nothing came out of the talks, and those nobles remained loyal to Henri, duc de Rohan (Supreme Governor of Guyenne).
Whether Switzerland joins depends on communication. I think a majority would be in favour of war. If at least one canton tells the rest that they will seek independence if they declare war, I'm sure that the idea would be scrapped in favour of just banning the sale of mercenary services to the Habsburg side. If they don't, I think somewhere around 20-16% of Switzerland will break off and ally with the Spanish.
, God In The Mountain, may our names inspire the deepest feelings of fear in urkos
and all his ilk, for we have saved another man from his lies! I welcome back to the feast hall kal, who will never gamble again! May the eleven gods bless him!