Rediener is one of ten winners out of Wiener (More Than Ready), who was third in the Listed Gimcrack Stakes in Australia. He is a full brother to Redoubtable Heart, third in the Gr.3 Grand Prix Stakes, and a half-brother to Rathlin (Fastnet Rock), a Listed winner and group-placed, and to the Listed-placed Za Zi Ba (All Too Hard), all three in Australia. Wiener is a half-sister to the champion sire Snitzel (Redoute's Choice), a Group 1 winner, to the Group 3 winner and sire Hinchinbrook (Fastnet Rock) and to the Group 3 winner Viennese (Redoute's Choice), dam of the Group 3-placed Gloriette (Lonhro), herself the dam of Arcaded (Street Boss), winner of the Gr.2 Blue Diamond Prelude.

Second dam Snippets' Lass (Snippets) won seven races, among them the Listed How Now Stakes and the Listed Sapphire Stakes.

Third dam Snow Finch (Storm Bird).

Wiener has a colt by Fastnet Rock born in 2021 and was covered by Wootton Bassett in 2022.