In the foundation book, 'Off Armageddon Reef' (OAR), we have this CoGA requirement;
... both the Writ and the Church’s own regulations also required that any churchman who aspired to the ranks of the episcopate must have married. How else could he understand the physical and emotional needs of the wedded believers for whose spiritual well-being he was responsible? (pg 261)
Yet, there is no textev that I can find that gives the marriage status for ANY of the Go4's marriage status! We have ample evidence of Vicar Zhaspahr Clyntahn's lust and assignations in his own quarters, but as for Vicars Rhobair Duchairn, Allayn Magwair, and Zahmsyn Trynair, they appear to be like contemporary Roman Catholic Cardinals, celibate and unmarried!
Yet, much is made of Clyntahn's abuse of the families of "The Circle" members and how Madame Ahnzhelyk / Nynian's organizaion had gone to dangerous lengths to save some of them along with Adorai (and sons), the family of Charis Archbishop Erayk Dynnys. Of course, we also have Vicar Hauwerd Wylsynn, also listed as NEVER marrying.
So, is it a requirement or a 'requirement'?