Ladislaus is planning to invade Bohemia in order to assist his sister's sons, Svatopluk and Otto.
However, he becomes seriously ill even before reaching Moravia.
According to the Illuminated Chronicle, Ladislaus "called together his chief men" and "ordained that" his brother's younger son Álmos "should reign after him", because he had no sons.
The king dies near the border between the Kingdom of Hungary and Bohemia on July 29, 1095.
Ladislaus is succeeded by his nephew Coloman of Hungary who apparently was the new guardian of Ladisalus’s orphaned daughter Piroska.
Seeking to advance Hungarian interest in the Balkans, and in an effort to improve relations with Emperor Alexios I Komnenos, Coloman negotiates the marriage of his daughter Piroska to John II Komnenos, the eldest son of Alexios I and Irene Doukaina.
Made co-ruler of his father on September 1, 1092, John is expected to succeed him.