I have never tested this, but would there be a benefit to alter event below to have a historic startdate (21st october 1422) . The issue as I see it is that BUR or ENG or DAU are spending there monies on tax collectors and ENG mop up "old" FRA anywhere between july 1421 and july 1422 .
OR
not have a start date , but include in the trigger......... when the old FRA king dies and the new one rises
#(1420-1422) Henry V is heir to France
event = {
id = 164165
trigger = { event = 170288 } #FRA: The Treaty of Troyes
random = no
country = ENG
name = "EVENTNAME164165" #Henry V is heir to France
desc = "EVENTHIST164165"
#-#Faced with the Anglo-Burgundian alliance and the pressure of Queen Isabel, Charles VI signed a veritable surrender of the Royal government in the Treaty of Troyes. Charles VI disinherited his own son, the so-called King of Bourges, and agreed to recognize Henry V as heir, giving him his daughter Catherine in marriage. For the Lancastrians, the Treaty of Troyes was a triumphant victory which seemed to offer them the Crown of St. Louis for good.
date = { day = 1 month = january year = 1420 }
offset = 1
deathdate = { day = 29 month = december year = 1422 }
action_a = {
name = "ACTIONNAME164165A" #Take the Dauphin, and Our Victory Will be complete!
command = { type = stability value = 3 }
command = { type = relation which = BRI value = -25 }
command = { type = relation which = DAU value = -100 }
command = { type = relation which = PRO value = -50 }
command = { type = war which = DAU }
command = { type = casusbelli which = DAU value = 120 }
command = { type = province_revoltrisk which = 384 value = 1 } #Caux
command = { type = province_revoltrisk which = 413 value = 1 } #Normandie
command = { type = vassal which = FRA }
command = { type = vassal which = BUR }
command = { type = addcore which = 376 } #Champagne
command = { type = addcore which = 383 } #Picardie
command = { type = addcore which = 386 } #Nivernais
}
}