Prince Asukabe who was a paternal half-brother of Prince Kuwata (his mother was FUJIWARA no Nagako, a daughter of FUJIWARA no Fuhito) and some others were also granted the hereditary title of TAKASHIMA no Mahito; however, each lineage ended at early stage.
他に桑田王の異母兄弟である安宿王（母は藤原不比等の娘藤原長娥子）なども高階真人姓を賜ったが、いずれも早い段階で断絶した。