A Younger Son of the Count of Holland

Later generations of house Van Teijlingen carried heraldery (used seals with Coat of Arms, or crest) that was derived of that of the Counts of Holland, but with the addition of a barensteel. [1]

Heraldry

Floris II married Ada of Scotland in 1162. Her uncle, William the Lion, carried the Rampant Lion (Lyon rampant, Klimmende leeuw), red on yellow. [2] [3]

Floris de Zwarte

So Floris de Zwarte, maybe a second son, maybe a first but bastard son, had a sister, maybe a bastard half sister, Hadewich. So much seems sure.

Hadewich Florisdr van Holland

When they were born, when they died, a lot less so. Maybe she became a nun (she was called a virgin in one document, and that could mean nun and then it should not be taken literally).

Maybe she did.

Maybe young, unmarried. Virgin. Maybe after she was impregnated by her (half) brother. Maybe only after she became a widow, and she withdrew in Rijnsburg (or what was it?).

Hugo and Hadewich

If she was then married of to Hugo van Voorne (the one most refer to as Hugo II), then likely not before that. Not sure what happened to the child then. The records clearly state Willem to be a son of Hugo. Doesn't really matter if Hugo only married the mother or fathered their son himself.

Then Willem 'grandson of Floris' van Voorne, when he came of age, got assigned Wijtvliet, it seems. Any he married the sister of another Hugo, van Teijlingen. Would both their fathers be named after the same grandfather? Starting to sound like an episode of 'my perv family'.

Van Teijlingen origins

Then HvT died, without a son. Then Gerrit, still alive?, got dispensation from the count (never found in writing), to pass vT on to his only remaining daughter. And so vT got Willem, who was know as vT since then, and mention first as such in #149. After he died, H might have become a nun in Rijnsburg.

Van Wijtvliet

They had a son Simon, who got Wijtvliet, who would have been a 2nd son then, cause the oldest would have gotten the more prestigious vT. That would have been a Willem. W#202?

And what about...

Hugo, Willem and Simon

JaL: Simon, the other son of Sicco, had a son Gerrit, banner-heer, was in Egmond klooster in 1143, already an old man. He had sons Hugo, third of Teijlingen, and Willem (0) van Teijlingen, ridder.

Hans Toll NV04: "XIII. Simon, son of Hugo (IV). Would be a brother of W#149. That's a new one. He died on crusade before Coeverden in 8-1237."

What if Willem Wijtvliet was W0? He has oldest son Willem, who was W#149, and 2nd son Simon who got Wijtvliet? Willem (0) wasn't a brother of Hugo, but a brother-in-law.

Hugo might have had a son Simon, but if so, he should have died before 1162, or he would have succeeded. But his sister, that got vT because Simon died early, maybe in battle, named her 2nd son after him. The 1st was named after her husband, the new vT line.

It would also explain a lot of naming. If W#149 was a grandson of Hadewich by W0 Floris van Voorne, he would surely have named a daughter Hazetiaan after her, wouldn't he? Cause she was his connection to vH.