In crossing a major linguistic and cultural border, the selection of a personal name distinct from ones birth name is called for. I¹ have, skipping the details, chosen the chinese name:
in which the personal name is homophonic with a pronunciation of my given name. I found out in 4704 that the person who was supposed to be my paternal grandfather ("Daugherty") probably wasn't so for that and other reasons the birth surname has been replaced by the new character (仁) ,
thus: 仁 人 卷 (R.R. Juan). The Irish have had a presence througout Latin American for more than 200 hundred years and Daugherty is a common surname, there is at least one other "Juan Daugherty" but SFAIK, only one Ren Ren-Juan.
Have moved to Real™ name as preferred nick either JuanDaugherty or RenJuan, but some of below still in use.
¹ XE DOB: Dec. 29, 1953 Chicago, IL, USA as Juan Edwin Daugherty