Richardson (surname) – Wikipedia

Richardson is an English surname of Anglo Saxon origin. The prefix Richard is a given name derived from the Old English ric (“power”) and hard (“brave”/”hardy”). The suffix -son denotes “son/descendant of”. The names Richard and Richardson are found in records as early as 1381 in Yorkshire, England. There are variant spellings including the Swedish Richardsson.

https://en.wikipedia.org/wiki/Richardson_(surname)