Władysław finally gave up his claims over Kalisz and Wieluń, and as a part of his new alliance with Greater Poland, he married Euphemia, sister of Przemysł I. Shortly after his marriage Władysław, like other Piast Dukes, entered the war between Hungary and Bohemia after the extinction of the House of Babenberg.
Władysław akhirnya melepaskan hak warisnya atas Kalisz dan Wieluń, dan sebagai bagian dari aliansi barunya dengan Wielkopolska, ia menikahi Eufemia, saudari Przemysł I. Tak lama setelah pernikahannya, Władysław, seperti adipati-adipati Wangsa Piast lainnya, berperang di antara Hongaria dan Bohemia setelah kepunahan Wangsa Babenberg.