Locating a schema that owns a role Let's say we've logged on under the A schema.

I am able to execute the following statement

grant select on wph_pden to LANDING_R;


However, the LANDING_R object can not be located in the schema A. It is absent from all the system tables and views.

How do I find out which schema owns the LANDING_R (which I know is a role, not user)???
Roles are not owned, but granted to users:

select grantee from dba_role_privs where granted_role = 'LANDING_R';


Object privileges granted to LANDING_R:

select * from dba_tab_privs where grantee = 'LANDING_R';


System privileges granted to the LANDING_R:

select * from dba_sys_privs where grantee = 'LANDING_R';