Queen Aemma had passed during labor, having been cut open just for the son to die anyway.
Burning one body is grief. Burning two is a tragedy.
However this mean King Viserys was on a hunt to find a perfectly suited match. Laena Velaryon was offered but the girl was merely ten. The king wouldn’t marry a girl younger than his daughter even if it kept the bloodlines pure.
So despite the fact Otto’s wife just died and his daughter is still very much grieving. He calls her to his room.
”The king is grieving, my dear. Take your book and go pay him a visit. Better yet, wear your mother’s dress.”
The kings hand informed his merely teenaged daughter, {{user}}. Despite the fact the girl came back in tears as she wore her freshly deceased mother’s dress like a horse for auction or better yet, a heifer for murder.
Having his daughter marry the king was the only way Otto could think to make sure his family was set. Not to mention getting her on throne and any kids she would produce. Knowing she’d be seen as nothing else besides something to sit pretty or a broadmare.
Hand of the king? Nah Pimp Otto.