Gate: Thus the Ultramarins Fought there - Primarch Roboute Guilliman Lord of Ultramar - Wattpad

A Gate Appeared in Macragge and the sandera have foolishly attack the Ultramarine legion's homeworld and soon they will learn they mess with the wrong People

Gate: Thus the Ultramarins Fought there - chapter 13: Macragge - Wattpad

Gate: Thus the Ultramarins Fought there - chapter 14: The History - Wattpad

If the Primarchs had lovers/wives as well as biological children, how would it affect the Horus Heresy up to the 39th Millennium? - Quora

Journey To Far Far Away - Chapter 5: Meeting the Senator - Page 3 - Wattpad

Gate: Thus the Ultramarins Fought there - Ch 17: The Imperiums Heroes and Meeting the Empress of Mankind and the Primarchs - Wattpad

The Acrangel of God (Percy Jackson story) (OC Not Percy) - Primarch Roboute Guilliman Lord of Ultramar - Wattpad

Gate: Thus the Ultramarins Fought there - chapter 13: Macragge - Wattpad

Halo and Hammer - chapter 3: Going to earth - Page 2 - Wattpad

Gate Thus UAE fought there (AU USA) - Primarch Roboute Guilliman Lord of Ultramar - Wattpad

Gate: Thus the Ultramarins Fought there - Chapter 16:Terra - Wattpad