Dictionary of Medieval Names
from European Sources

Siserich m. Old High German sisu 'lament, song' + Old High German rih 'ruler'.

Spain
Latin
954 siserici (gen) CDGH XLVII
Cite as: S.L. Uckelman. "Siserich". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Siserich.