David,
Wiberg tells us, that Trinitatis in 1858 was divided into a northern and southern parish.
Rothe died (as you write) Feb.20,1857, so I think it must have been Christian Vilhelm Nielsen, who at that time was 'kapellan' (perpetual curate) (see
http://tom-stryhn.com/viberg/k1/Untitled-7.htm no.7) , but from 1858 became 'sognepræst' (vicar) in the southern parish.
Ole