Ketubah Eisik and Sura

At the same moment I got possession of the many documents I'm sharing on this site, I got to know that beginning of the years 2000 something my grand-father donated the Ketubah (religious marital contract) of his parents to the Jewish Museum in Brussels.

Thanks to the kindness of the head conservator of the museum, it just took me one email to get a scan of the Ketubah and am able to share it here :

Unable to understand (I can decypher most of the letters and could spot words such as names) this text I will, with the other docs in that case, seek for help in translation. Interestingly enough, the museum also shared the data record that goes with the Ketubah. It reads ;

"Acte du mariage religieux fait à Mishev, Pologne, le 13 Sivan 1912 entre Itzhak Eisik Zvi fils de Yakov ha-cohen et Sarah fille de Yossef"

Which freely translates to  ; Izhak Eisik Zvi, son of Yakov ha-Cohen and Sarah daughter of Yossef [Pasternak] maried on 13 Sivan 1912 (May 29th, 1912) in Mishev, Poland.

Not only does that give me the first names of one generation earlier than Eisik and Sura, but the big surprise is that they got married in Poland. What do we know about Mishev ?

There is no such town as Mishev in Poland, so very probably this is the yiddish translation. After some googling my best guess for the moment is that it refers to Miechow. The Virtual Shtetl website has a nice collection of pictures of the shtetl. Szaja Szajnfrut was the rabbi of Miechów.

As usual, new findings bring more questions ;
Why were they married in Mishev ? Did Eisik and Sura both live in Mishev before emigrating to Sighet, Romania ? Or did one of them come from Sight and the other from Mishev ? What were the customs at that time ? When did they leave for Sighet ? Why did they leave for Sighet ?