Segmunt, Rowan

Rowan Segmunt was a mercenary-for-hire from the Sacred Vollachia Empire and the father of First ranking Divine General Cecilus Segmunt.

[Spoiler] Initially debuting as a minor character during one of Subaru's failed loops in Arc 7, he later reappeared with both a supportive and antagonistic role in Arc 8. [/Spoiler]

[Spoiler] A Stargazer tasked by the Observers to find a way to reach the Heavenly Sword, Rowan was responsible for numerous deaths, including those of his own children, until his son Cecilus Segmunt was born. Though abandoned by the Observers, he kept his goal of reaching for the Heavenly Sword, continuously refining his skill and turning himself into a mercenary and criminal in the process. [/Spoiler]

[Spoiler] During the Great Disaster, Rowan committed suicide to become an undead in an effort to combat Iris and reach the Heavenly Sword in death. In the end, however, his soul was incinerated by Eugard Vollachia's Yang Sword, being completely reduced to cinders after a final duel with his son that ended in his failure. [/Spoiler]

(Source: Re:Zero Wiki)