Konstantin was born about 1312, the son of unknown parents. The place is not known.
He died about 1365. The place is not known.
His wife was Maria Fetiniya Ivanovna. They were married, but the date and place have not been found. Their three known children were Vasilissa Konstantinova (?-?), Olga Konstantinova (?-?) and Vladimir Konstantinovich (?-1409).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1312 |
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| Death | ABT 1365 |
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