It is kind of surprise i found some info why zen and buddhist
monastery tends to put Kimnara
here you are
http://www.kungfu-supply.nl/simon/China/shaolin_frame/jinnaluo_tang.htm
"Prince Kimnara, surnamed Xu, became a Buddhist monk of Shaolin in
the Yuan Dynasty. After hard learning and devoted practice, he
finally succeeded in becoming a Guardian Bodhissattva of Shaolin
Temple. There used to be three statues of Prince Kimnara in the
hall, one made of rattan, one cast in bronze and one in iron, and
on both sides there used to be two stones tablets with Kinmara's
image engraved on them during the Northern Period. The original
hall was destroyed by war in 1928. It was rebuild and repainted in
1982 after the original model. Three new statues of Prince Kimnara
were recast."
I suggested the Yuan Dynasty is incorrect .. Becos yuan dynasty is
immediately after Song Dynasty
I believe it is in either Eastern Jin Dynasty
Northern Period is after the fall of Eastern Jin Dynasty