Prince Josef Wenzel I of Liechtenstein (1696-1772) was the eldest son of Prince Philip Erasmus and Princess Christina Theresa, née Countess von Löwenstein-Wertheim-Rochefort.
He mainly devoted his life to a successful military career, reaching the high ranks of field marshal and generalissimo in Italy in 1745 and of General Chief Commander in Hungary eight years later; he also served as ambassador of the Holy Roman Emperor to the Kingdom of France and as Imperial envoy in Berlin.
According to his biographies, he reigned the principality three times: the first time between 1712 and 1718, as heir to Prince Johann Adam I, being succeeded by his uncle Anton Florian; the second time between 1732 and 1745, as regent for the minor Prince Johann Nepomuk Karl (grandson of Prince Anton Florian); and the third time from 1748 to 1772, as successor to Prince Johann Nepomuk Karl.
Does anyone know why he reigned the first time, and therefore how did his succession to Prince Johann Adam I happen?
I wonder that, because his uncle Prince Anton Florian was the older brother of his father, and therefore he should have succeded to Prince Johann Adam I in 1712, as his nearest male relative (as shown in this genealogical table
, from the website of the Princely Family). Why was Prince Anton Florian skipped in 1712?