Read up on the `uselist=False` option for relationships -- http://docs.sqlalchemy.org/en/rel_0_9/orm/relationships.html
It would look something like this: class Parent(Base): children = relationship("Child", primaryjoin="Parent.id==Child.parent_id") eldest_child = relationship("Child", uselist=False, primaryjoin="Parent.eldest_child_id==Child.id") You may need to use a "primaryjoin" argument. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.