8 Unknown Coins From Dorpat, Livonia, Sweden, Etc

These photos are pretty darn tiny. I doubt anyone who isn't an expert could say much from these - certainly not the date!
#3 (top right) is the only type I could even identify (Free City of Riga under Sigismund III; Numista says the date is 16XY, where X and Y are left and right of the huge letter S respectively).

Nr 1- Duchy of Courland, schilling (15)76
Nr 2-Dahlen/Dole schilling (15)72, you can also call it Hadkiewitz if you wish
Nr 3 Riga under Poland, schilling (solidus), Sigismund III. around 1600, date not clearly visible, (15)95?
Nr 4-Reval under Sweden, Erik 14, schilling (15)65
Nr 5-Riga schilling (15)63, Archbishop Brandenburg
Nr 6-Riga schilling, von Brüggenei, master of the Livonian Order, ca 1535 do not clearly see the date, but it is there
Nr 7-8 1/2 groschen, Poland

None of them is particularly valuable today.

As I often see some misconceptions about the history of these countries, here are some comments:
The Free City of Riga had nothing to do with Sigismund III, it was the period before the Polish rule that only started in 1581 in Riga, although the surrounding territory was controlled or dominated by Poland already from 1561-63.
It is true that Dorpat was a bishopric once, but it was an independent medieval country, and was neither ruled by Livonian knights who had their own state, nor used as a mint for them. They issued their own bishopric coinage (none of them are in the pictures) and the Livonian knights had their own separate coins.
It is true, however that both of them belonged to the Livonian Confederation along with some other feudal states and this confederation was dominated by Livonian knights, but that's how far it goes. It was never a single country. The Livonian knights did not have much direct power over the other states, altough as the strongest member in the confederation, they undoubtely had their influence and say, but it was never as automatic as would be expected from a ruler. All coins issued by the member states could circulate freely in the whole Confederation, similarly as is the situation with euro coins today, but this also does not make the EU a single coutry. The Confederation ended in 1561, however, and its territory was divided among neighbouring Poland, Sweden, Denmark, and temporarily also Russia and all of them issued their own separate coinage, some of which can also be seen on the pictures.
If you have deeper interest in them, I can recommend some special catalogues, as some of them are not covered by Krause, which I would not recommend anyway for these coins, because of several errors.