While they will marry outside the family, when necessary, it isn’t the norm for them.

Aegon II shows little interest in his sister/wife, unlike his brother Aemond (Ewan Mitchell).

This raises the question of who may have fathered Helaena’s children.

Ewan Mitchell as Aemond Targaryen and Phia Saban as Helaena in House of the Dragon

Image via HBO

Aegon the Conqueror had two sisters.

It was tradition for him to marry Visenya, the older of the two.

However, Aegon wed Rhaenys out of love, at least, according to the stories.

Tom Glynn-Carney, Ewan Mitchell, Phia Saban, Olivia Cooke, and Rhys Ifans in House of the Dragon

Image via HBO

The three siblings conquered Westeros together with thehelp of their dragons.

But they didn’t exist without conflict.

Afterward, the Targaryen kings adopted the Westerosi customs of having only one wife at a time.

Aegon II Targaryen, Aemond, and Helaena stand together looking at something off camera

Image via HBO

As heir to the throne, Aegon married her, but she and Aemon had a better relationship.

Aemon defended the queen in a trial by combat for the treasonous accusation and won.

But the suspicions didn’t go away.

Phia Saban as Helaena Targaryen and Harry Collett as Jacaerys Velaryon dancing together in House of the Dragon

Image via HBO

Aegon IV and his siblings weren’t the only ones to develop a love triangle.

Despite her beauty and recognized status as the king’s daughter, Shiera never married.

Supposedly this is because she didn’t want to.

Bethany Antonia, Harry Collett, Elliot Grihault, Phoebe Campbell in House of the Dragon Season 1

Image via HBO

The two always had a rivalry which only worsened when Shiera chose Brynden over Aegor.

Brynden, better known as Bloodraven, wanted to marry Shiera, but she refused him.

She did like the jealousy he expressed over her, perhaps making the situation worse.

House of the Dragon

This is only one example of the relationship Aemond and Helaena seem to share.

When Rhaenys (Eve Best)threatens the family on dragonback, Aemond protects Helaena.

The two certainly have a good relationship, but that doesn’t mean they have children together.

After all, these things could be explained by the fact that they are siblings.

Or the baby could have been paying attention to something else entirely.

It isn’t much for the theory to hang on.

But it is possible.

But the truth is, Jaehaerys, Aegon’s son, would be next in line.

Did Aemond mean to sayhisson would be next in line?

Then Are All the Next Generation Targaryen Children are Bastards?

One of Alicent’s primary arguments against Rhaenyra on the throne is that her children are bastards.

The point becomes ironic if she wants her children, whose only descendants are bastards, to rule instead.