Dymitr Sr., prince of Drutsk - complex conflict

Aren't Kaributas-Dmitry, duke of Novgorod-Seversky
KORIBUTAS [Korybut] of Lithuania ([1331]->1404) baptised DMITRY 1386. Prince of Novgorod Seversk
s/o ALGIRDAS & Maria Iaroslavna of Vitebsk
x (> [1384]) ANASTASIA Olegovna of Riazan
1IWAN 2[MICHAEL] 3SIGISMOND 4MARIA 5ELENA 6ANASTASIA 7FEODOR

and Kaributas-Dmitry, duke of Novgorod-Seversky
prince Kaributas Dmitry Gediminids of Lithuania MP
Son of Algirdas, Grand Duke of Lithuania and Uliana of Tver, queen consort of Lithuania
Husband of Anastasia of Ryazan
Father of prince Sigismund Korybut; Fedor Korybut, prince of Nesvizh and Podole; Andrzej Dymitrowic Trubecki, Prince of Trubetsk 1379–1386; prince Ivan Korybut; princess Maria Korybut; Anastazja Korybutówna, Princess of Kaszyn and Helena Korybutówna

the same person - despite the Curator Note on the 2nd?
Curator Note from Andrzej Hennel (3/5/2012):
Please do not merge him with his older half-brother Dmitrijus Starszy (Older) (c. 1320-1399).

(I'd ask Andrzej Hennel whose CN it is, but he hasn't been on for 2 years)

Spare children on geni for Uliana of Tver, Queen Consort of Lithuania & Algirdas, Grand Duke of Lithuania

Korybut - Kaributas
Boris of Lithuania
Kaributas-Dmitry, duke of Novgorod-Seversky
Eufrosina of Lithuania

Merged the two Kaributas-Dmitry, duke of Novgorod-Seversky es. All other relationships were the same except son of Maria Iaroslavna of Vitebsk. Please yell if you can find primary sources to point to the 2nd wife as the mother.

The problem then is that she marries her unce:
Anastasia of Ryazan → Eufrosina of Lithuania her mother → Algirdas, Grand Duke of Lithuania
her father → Koributas Dmitry, Prince of Novgorod Severskiy his son

My pleasure - it was very interesting. I was just trying to do stability work to eliminate the possibility of a duplicate tree continuing to be merged in while Private User was trying to work to fix things. She will come back and take over :-)