Hilya
Later "hilyes" were also written for the first four Caliphs , the companions of Muhammad , Muhammad's grandchildren ( Hasan and Hussein ) and Islamic saints ( walis ) . 
<triplet> first four Caliphs <subj> companions of Muhammad <obj> part of <triplet> Hasan <subj> companions of Muhammad <obj> part of <subj> Hussein <obj> sibling <triplet> Hussein <subj> Hasan <obj> sibling