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(BAA, "LoBPC" stands for "Lack of Butterflies Plausibility Check" )
Anyway, idea here is William and Mary have a son, born 1692, named after his father. His reign sees unification of Britain and the Netherlands in 1707, but other than that, politically at least, British FP and such remain more or less the same as OTL until his successor. This includes getting into what OTL calls the Seven Years War, and winning.