The phrase "erstwhile of" is grammatically correct and can be used in written English. It is typically used to describe something or someone that was previously in a certain state or position. Example: The erstwhile President of the company resigned unexpectedly last week. This sentence indicates that the person was previously the President of the company, but is no longer in that role. The use of "erstwhile of" emphasizes the change in status or position.
Up front, a leggy hostess turned out to be Stacy Ann, erstwhile of "America's Next Top Model," who explained that, your reservation and the empty tables notwithstanding, a seat in the main room (red leather banquettes, dim lighting, OSHA-friendly noise level) was a two-hour wait.
Team Shakira's Sasha Allen, erstwhile of Team Adam, showed off her upbeat, sunny side with Emeli Sande's "Next to Me".
Sasha Allen, Team Shakira's powerhouse, erstwhile of Team Adam, sang Heart's "Alone" and tried to make it more pop than Broadway.
Together with Leningrad's awakening come the beginnings of a revival of the erstwhile quality of the place as a world city.
Earl Stevens is the creation of Paul Putner, erstwhile Fist of Fun co-star.
Having struggled to win the confidence of the erstwhile Conservatives of Middle England, he does not want a silly misunderstanding to alienate him from their affections.
Northern Ireland secretary Theresa Villiers looked particularly thrilled to be there: And what of Michael Gove, erstwhile scourge of teachers and longstanding friends?
It was during his time at King's that he came to the attention of the Dean of Westminster, and erstwhile Dean of King's, Eric Abbott.
Lack of a database at the central and state levels. 1 erstwhile Directorate of Statistics; the unit of statistics under the Directorate of Education in ICFRE.
He also had a long affair with the writer and actress Mary Perdita Robinsonon, erstwhile mistress of the Prince of Wales.
Several relatives of Aslan Maskhadov, erstwhile president of Chechnya turned rebel, have also been seized.
