I have found some more information about Stříbrná Skalice, and thanks to @Freix for translating some of the czech sources for me.
This will be Henrys hometown, where his father was the blacksmith. During the mediaeval times, there were silver mines around the town, this silver was used to make the prague groschen coined in Kutná Hora, only a few miles in east of the map. We can see it in the coat of arms of the city.
During 1403 Stříbrná Skalice had a small castle, a knight of King Wenceslaus IV named Racek Kobyla (Gull Mare) from Dvorce was the lord of the castle and he also will be Henrys lord.
In 1402 King Sigismund of Hungary besieged Kutná Hora with his cuman mercenaries and as they were succesfull after a while, they came to Stříbrná Skalice. Racek Kobyla saw that he would be outnumbered by the enemy and fled during the night trough a secret tunnel of the castle course Rataje. Also his wife fled with some women, but they were caught and murdered by the cumans like Henrys family too. The hungarian troops took the castle and burned it down. After the war, King Wenceslaus give Skalice castle to a knight called Jan Sokol of Lamberka.
He also fought in the war, as he was a liege of Prokop of Luxembourg who was an ally of Wenceslaus, so maybe will meet him. But I ask myself, what happend to Racek Kobyla, if Jan Sokol get his castle?
There is even more to say, a little bit outside of Stříbrná Skalice there is an old church, build in the 12. century. It was sacred to St. Jacob.
I am sure we will see about it in the game. Patrons of the church in 1402 were Bolek from Skalice from order of St. John and a knight called Bohdal of Drahonovic, maybe we also will meet them in the game.