Sometimes surnames were created from the father's forename (known as patronymic). 1  Peter has a son called John. John's surname becomes Peterson (Peter's son). 2  Ruairidh has a son called DÃ²mhnall. DÃ²mhnall's surname becomes MacRuairidh, or MacRury (mac Ruairidh).
Mandel Ngan/AFP/Getty Images. There are a few appropriate responses to the news, broken by US Weekly on Wednesday, that Donald and Melania Trump allegedly sleep in separate bedrooms.
By David Holzel. (Mental Floss) -- President-Elect Obama's mother-in-law will be moving to Washington with the first family, at least temporarily, his transition team has confirmed. Marian Robinson will be the latest in a line of presidential in-laws who, for good or ill, lived under the same roof as the president.