Probert is a patronymic surname of Welsh origin, derived from the phrase ap Robert, meaning "son of Robert". The name Robert itself originates from the Germanic Hrodebert, composed of the elements hruod "fame" and beraht "bright", thus signifying "bright fame". The name became widespread in Wales after the Normans introduced it to Britain. Etymology The prefix ap (or ab) in Welsh names indicates a patronymic relationship, analogous to the Gaelic Mac or the English -son. Over time, ap Robert contracted through common usage to become the single surname Probert. This formation is typical of many Welsh surnames, such as Pritchard (from ap Richard) and Prothero (from ap Rhydderch). Notable Bearers Historical records show a concentration of Proberts in Monmouthshire, Wales, where several members served as Sheriffs of Monmouthshire during the 16th to 18th centuries, including Walter ap Robert under Henry VIII and Mary I, Henry Probert under Charles I, Henry Probert under James II, and Charles Probert under George I. Thomas ap Robert (d. 1536) was a gentleman usher to Henry VII. Sir George Probert (c.1617–1677) served as a Member of Parliament. William Probert (c. 1787–1825) gained notoriety as an accessory in the Radlett murder case. In modern times, Arthur Probert (1907–1975) was a Labour MP from 1954 to 1974. Variants Related surnames include the English Roberts, Robertson, and Roberson (the latter formed by analogy with -son but possibly influenced by Welsh contraction), as well as Robertsen in Danish and the French form Robert without affix. Intriguingly, the English surname Dobbs also derives from a pet form of Robert, but is of different linguistic development. Meaning: Son of Robert Origin: Welsh patronymic Type: Surname Regions: Wales (especially Monmouthshire), England