You need to check your facts.
There’s a long history of same-sex marriage. For instance: two men Pedro Díaz and Muño Vandilaz were married in the Galician municipality of Rairiz de Veiga in Spain on 16 April 1061.
Utterly absurd as proved by your single, quirky, unproven, and linkless example. Don't even try including Boswell's myth of Saints Sergius and Bacchus.