Y3548 (S17250)>Y4882>Y16473>FT66517>FGC30452:
The I-Y4882 haplogroup prevails in Poland, Slovakia, Czech Republic, Germany and Hungary. I-Y4882 has two main branches: the large I-Z16969 branch and the small I-Y16473 branch. I-Y16473 can be found in Poland and eastern Slovakia.
According to FTDNA's haplotree, I-FGC30452 contains two subbranches: I-BY30329 and I-BY212399:
https://discover.familytreedna.com/y-dna/I-FGC30452/tree
YFull shows three branches below I-FGC30452, and two I-FGC30452* samples
https://www.yfull.com/live/tree/I-FGC30452/
YFull doesn't show the I-BY212399 branch, probably because YFull considers BY212399 to be unreliable. But the I-BY212399 branch is the parent of YFull's I-Y83761 branch, YFull's I-Y419720 branch and YFull sample YF106053 (this is a Big Y sample from FTDNA).
See the combined tree below. Note that the I-FT92965 branch contains a FTDNA sample from Slovakia, and three scientific samples that are shown on the YFull tree: GMP3823, GMP3822, GMP5240 (at least one of these samples is from Poland).
-- FGC30452 -------------------------------------------------------------- YF118814 (Nebula)
|
|-- BY212399 -------------------------------------------
| |
| |-- ZS9483/Y910 ------------------ Slovakia (FTDNA)
| | |
| | |-- FT92965 -- Slovakia,Poland
| |
| |-- FT94816 ------------------------- Hungary (FTDNA)
| |
| |-- BY70878 -- Czechia (FTDNA)
|
|-- BY30329 ------------------------------------------
|
|-- FT355816 ----------------------- Poland (FTDNA)
| |
| |-- FTE75608 – Poland (FTDNA)
|
|-- FGC30465 ----------------------- Poland (FTDNA)
