莫里斯的弟弟佩特魯斯(英語:Peter (curopalates))(c. 550 – 602) 被封為「庫羅帕拉特」,與莫里斯同時被殺。 佩特魯斯妻子Anastasia Aerobinda (b. ca 570), daughter of Areobindus (b. c. 550), and had female issue.
妹妹狄奧克蒂斯塔(Theoctista)(c. 540 – aft. 582) 丈夫死於582年莫里斯登基前,有一女歌迪亞(Gordia) (c. 560 – aft. 597), 她嫁給Marinus (c. 555 – aft. 597), son of Nerses (c. 530 – aft. 595) and wife Hesychia (b. c. 535), by whom she had a daughter Theoctista (c. 575/c. 580 – aft. 597), married to Christodorus or Christodoros (b. c. 570) and had issue.
另一個妹妹歌迪亞(Gordia) (c. 550 – aft. 602)嫁給Philippicus將軍 (c. 550 – Chrysopolis, 614), 582年封comes excubitorum和magister militum ,by whom she had a daughter, who married Artabastus (Artavazd) Mamikonian (b. ca 565), and had issue.
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