The central panel shows the martyrdom of St. Sebastian, with the side panels portraying the husband and men of the household on the left and the wife and women of the household on the right, each group with their own saint.
The left-hand panel also bears the arms of the husband (Quarterly, 1 and 4, Vert? three lions rampant Argent? armed, langued and crowned Gules?, 2 and 3, Sable six Xs three, two, and one Or),
while the right-hand panel bears the marshalled arms of husband (as above) and wife (Or on a bend Sable three mullets Or) on a lozenge (as was appropriate for a woman, but certainly cramping the design of the husband's quarterly coat!).