Post Your Papal States Coins - Reverse Chronological Schedule By Ruler

Nice addition, Bacchus2.

Great coin!
If I am not mistaken, the date has been concocted in hybrid fashion combining both Hindu-Arabic and Roman numerals, as 155V. I can't recall seeing other examples of this, and I can't imagine why the engraver might have done this. One thought that came to mind was that if the sede vacante began in December, then he could have just added an I to the end of the date when the calendar turned over, rather than doing something messier. But it was May, not December.

As that interregnum was only 3 weeks, I imagine that not very many of these were struck.

(And .... welcome to a new sede vacante )

For the first time in history, we have an American camerlengo ... the guy who runs the conclave to elect the next pope

This could get interesting

The date is a bit of a mystery with the mix of characters used. Very odd indeed - but kinda cool.. I do like the Sede Vancante coins because of their short minting period - yet they are reasonably obtainable (in some cases anyway)

I have nothing now until the 1400's

Wow! I won't make it to the 1400s. Which I think means we can speed things up.

Indeed.

Before moving on to the next time slice, I'll just point out that the first half this century was one of the most tumultuous eras for the church in general, but also for the entire Italian peninsula. For roughly 60 years, the French and Hapsburgs fought for control of the Italian peninsula, with every significant principality on the peninsula (Papal States, Milan, Venice, Florence, Ferrara, Mantua, Naples etc) taking sides, often with shifting allegiances.

Meanwhile, the church had to reckon with that pesky English king (Henry VIII), that pesky German priest (Martin Luther) and so on.
So, Julius II mentioned by Bacchus2 was nicknamed "the Warrior Pope" for his involvement in the peninsular wars; his successor; Leo X excommunicated Luther; Clement VII forbade Henry's divorcing of Catherine, and his successor, Paul III excommunicated Henry, and also opened the Council of Trent, which formulated the church's tactics known as the Counter-Reformantion.

So, here we go for the rest (earliest) of the 16th century:
Clement VII (1523-1534)
Adrian VI (1522-1523)
Leo X (1513-1521)
Julius II (1503-1513)
Pius III (1503)

Whenever we run out on this period, we will have completed a 350-year run, and will just open it up to all earlier reigns.