It's a set of Borromean rings, a personal favorite "knot" (really a braid) of mine and a remarkably common occurrence in iconography once you start looking for

It's a set of Borromean rings, a personal favorite "knot" (really a braid) of mine and a remarkably common occurrence in iconography once you start looking for them: https://en.wikipedia.org/wiki/Borromean_rings https://en.wikipedia.org/wiki/Borromean_rings