Well then, let's just split Danubian Urnfield Cultures into Western(more Alpine)/Eastern(more Carpathian) zones, but the core zone inbetween Alps and Carpathian mountains?
That's for sure, but a wide range. And they were already split in the Tumulus Culture phase, which is the latest point at which Illyrian and Thracian must gone separate ways. The Middle Danubian TC pushed the ancestors of Kyjatice-G?va East and annihilated the F?zesabony sibling of the late Otomani complex, the Gyulavars?nd group. Both were intrusive, but from different backgrounds (Bell Beaker vs. Epi-Corded), and the Middle Danubians came in later, actually.
You see it on the PCA too, the Southern Illyrian-West Balkan Illyrian complex with J2b plots with the French, the F?zesabony-Kyjatice-G?va with French too, but in comparison much more with Balkan, Germanics and Slavs.
[TABLE="class: distances"]
[TR]
[TH]Distance to:[/TH]
[TH]HUN_LBA_Gava:I20771[/TH]
[/TR]
[TR]
[TD]0.03594555[/TD]
[TD]Croatian:Croatia_Cro198[/TD]
[/TR]
[TR]
[TD]0.04016997[/TD]
[TD]German:German18[/TD]
[/TR]
[TR]
[TD]0.04102858[/TD]
[TD]Slovakian:Slovakia85[/TD]
[/TR]
[TR]
[TD]0.04207747[/TD]
[TD]Austrian:Austria16[/TD]
[/TR]
[TR]
[TD]0.04239893[/TD]
[TD]Hungarian:NA15200[/TD]
[/TR]
[TR]
[TD]0.04326720[/TD]
[TD]Polish

olish27[/TD]
[/TR]
[TR]
[TD]0.04327447[/TD]
[TD]Austrian:Austria17[/TD]
[/TR]
[TR]
[TD]0.04334110[/TD]
[TD]Austrian:Austria15[/TD]
[/TR]
[TR]
[TD]0.04368963[/TD]
[TD]German:German4[/TD]
[/TR]
[TR]
[TD]0.04476262[/TD]
[TD]Polish

olish28[/TD]
[/TR]
[TR]
[TD]0.04519971[/TD]
[TD]German:German76[/TD]
[/TR]
[TR]
[TD]0.04532535[/TD]
[TD]German:German73[/TD]
[/TR]
[TR]
[TD]0.04546498[/TD]
[TD]German:German59[/TD]
[/TR]
[TR]
[TD]0.04554725[/TD]
[TD]Slovenian:Slovenian90[/TD]
[/TR]
[TR]
[TD]0.04578035[/TD]
[TD]German:German75[/TD]
[/TR]
[TR]
[TD]0.04578825[/TD]
[TD]Slovakian:Slovakia96[/TD]
[/TR]
[TR]
[TD]0.04591099[/TD]
[TD]Slovakian:Slovakia118[/TD]
[/TR]
[TR]
[TD]0.04625260[/TD]
[TD]Polish

olish10[/TD]
[/TR]
[TR]
[TD]0.04643268[/TD]
[TD]German:German40[/TD]
[/TR]
[TR]
[TD]0.04673483[/TD]
[TD]Ukrainian:UKR-1283[/TD]
[/TR]
[TR]
[TD]0.04695328[/TD]
[TD]Moldovan_o:Moldovan_V46055[/TD]
[/TR]
[TR]
[TD]0.04710677[/TD]
[TD]German:German64[/TD]
[/TR]
[TR]
[TD]0.04726736[/TD]
[TD]Austrian:Austria7[/TD]
[/TR]
[TR]
[TD]0.04739816[/TD]
[TD]Polish

olish26[/TD]
[/TR]
[TR]
[TD]0.04746757[/TD]
[TD]Croatian:Croatia_Cro141[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH]Distance to:[/TH]
[TH]HUN_LBA_Kyjatice:I1504[/TH]
[/TR]
[TR]
[TD]0.03716199[/TD]
[TD]French_Alsace:A_31[/TD]
[/TR]
[TR]
[TD]0.03956820[/TD]
[TD]German_East:German_East3[/TD]
[/TR]
[TR]
[TD]0.04211835[/TD]
[TD]Slovenian:Slovenian90[/TD]
[/TR]
[TR]
[TD]0.04255626[/TD]
[TD]German:German47[/TD]
[/TR]
[TR]
[TD]0.04280057[/TD]
[TD]Austrian:Austria16[/TD]
[/TR]
[TR]
[TD]0.04387790[/TD]
[TD]Croatian:Croatia_Cro198[/TD]
[/TR]
[TR]
[TD]0.04393539[/TD]
[TD]French_Alsace:A_69[/TD]
[/TR]
[TR]
[TD]0.04400297[/TD]
[TD]German:German73[/TD]
[/TR]
[TR]
[TD]0.04497305[/TD]
[TD]French_Alsace:A_25[/TD]
[/TR]
[TR]
[TD]0.04521751[/TD]
[TD]French_Auvergne:C_37[/TD]
[/TR]
[TR]
[TD]0.04526846[/TD]
[TD]Hungarian:NA15200[/TD]
[/TR]
[TR]
[TD]0.04529478[/TD]
[TD]French_Nord:N_18[/TD]
[/TR]
[TR]
[TD]0.04549825[/TD]
[TD]German:German41[/TD]
[/TR]
[TR]
[TD]0.04563996[/TD]
[TD]Austrian:Austria11[/TD]
[/TR]
[TR]
[TD]0.04573830[/TD]
[TD]Italian_Sappada:GRC14372363[/TD]
[/TR]
[TR]
[TD]0.04586365[/TD]
[TD]Italian_Sappada:GRC14372308[/TD]
[/TR]
[TR]
[TD]0.04595099[/TD]
[TD]French_Occitanie:T_65[/TD]
[/TR]
[TR]
[TD]0.04599167[/TD]
[TD]Slovenian:Slovenian136[/TD]
[/TR]
[TR]
[TD]0.04611260[/TD]
[TD]German:German29[/TD]
[/TR]
[TR]
[TD]0.04619197[/TD]
[TD]French_Alsace:A_49[/TD]
[/TR]
[TR]
[TD]0.04624080[/TD]
[TD]Croatian:Croatia_Cro142[/TD]
[/TR]
[TR]
[TD]0.04626876[/TD]
[TD]Hungarian:NA15208[/TD]
[/TR]
[TR]
[TD]0.04631957[/TD]
[TD]French_Occitanie:T_36[/TD]
[/TR]
[TR]
[TD]0.04652386[/TD]
[TD]French_Alsace:A_15[/TD]
[/TR]
[TR]
[TD]0.04662286[/TD]
[TD]Croatian:Croatia_Cro43[/TD]
[/TR]
[/TABLE]
Compare with some J2b Illyrians, some with possible Veneti or Celtic relations:
[TABLE="class: distances"]
[TR]
[TH]Distance to:[/TH]
[TH]J2B:I23995[/TH]
[/TR]
[TR]
[TD]0.02016571[/TD]
[TD]Italian_Piedmont:ItalyPiedmont127[/TD]
[/TR]
[TR]
[TD]0.02154721[/TD]
[TD]Italian_Veneto:KF1800772[/TD]
[/TR]
[TR]
[TD]0.02245733[/TD]
[TD]Italian_Veneto:KF1800751[/TD]
[/TR]
[TR]
[TD]0.02272725[/TD]
[TD]French_Corsica:corsica11908[/TD]
[/TR]
[TR]
[TD]0.02436301[/TD]
[TD]Italian_Bergamo:HGDP01147[/TD]
[/TR]
[TR]
[TD]0.02526576[/TD]
[TD]Italian_Veneto:Alp401[/TD]
[/TR]
[TR]
[TD]0.02531035[/TD]
[TD]Italian_Trentino-Alto-Adige:ALP200[/TD]
[/TR]
[TR]
[TD]0.02579578[/TD]
[TD]Italian_Trentino-Alto-Adige:ALP395[/TD]
[/TR]
[TR]
[TD]0.02604619[/TD]
[TD]French_Provence

rovance2508[/TD]
[/TR]
[TR]
[TD]0.02634485[/TD]
[TD]French_Provence:S_33[/TD]
[/TR]
[TR]
[TD]0.02640638[/TD]
[TD]French_Provence

rovance2708[/TD]
[/TR]
[TR]
[TD]0.02672187[/TD]
[TD]Italian_Trentino-Alto-Adige:ALP259[/TD]
[/TR]
[TR]
[TD]0.02677038[/TD]
[TD]Italian_Piedmont

iedmont61[/TD]
[/TR]
[TR]
[TD]0.02696502[/TD]
[TD]Italian_Northeast:ALP346[/TD]
[/TR]
[TR]
[TD]0.02703713[/TD]
[TD]Italian_Northeast:KF1800761[/TD]
[/TR]
[TR]
[TD]0.02709998[/TD]
[TD]Italian_Veneto:ALP022[/TD]
[/TR]
[TR]
[TD]0.02808118[/TD]
[TD]Italian_Lombardy:ALP288[/TD]
[/TR]
[TR]
[TD]0.02826900[/TD]
[TD]Italian_Bergamo:HGDP01153[/TD]
[/TR]
[TR]
[TD]0.02880657[/TD]
[TD]Italian_Veneto:ALP116[/TD]
[/TR]
[TR]
[TD]0.02883318[/TD]
[TD]Spanish_Penedes:ROB016[/TD]
[/TR]
[TR]
[TD]0.02884183[/TD]
[TD]Italian_Trentino-Alto-Adige:ALP071[/TD]
[/TR]
[TR]
[TD]0.02884906[/TD]
[TD]Spanish_Mallorca:MEL022[/TD]
[/TR]
[TR]
[TD]0.02886690[/TD]
[TD]Spanish_Mallorca:MAY035[/TD]
[/TR]
[TR]
[TD]0.02890136[/TD]
[TD]Italian_Veneto:ALP250[/TD]
[/TR]
[TR]
[TD]0.02898031[/TD]
[TD]Italian_Veneto:Alp100[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH]Distance to:[/TH]
[TH]J2B:I26742[/TH]
[/TR]
[TR]
[TD]0.02262368[/TD]
[TD]Italian_Bergamo:HGDP01155[/TD]
[/TR]
[TR]
[TD]0.02656272[/TD]
[TD]Italian_Veneto:ALP209[/TD]
[/TR]
[TR]
[TD]0.02704348[/TD]
[TD]Italian_Lombardy:ALP288[/TD]
[/TR]
[TR]
[TD]0.02770564[/TD]
[TD]Italian_Bergamo:HGDP01153[/TD]
[/TR]
[TR]
[TD]0.02795969[/TD]
[TD]French_Corsica:CorsicaS04208[/TD]
[/TR]
[TR]
[TD]0.02819830[/TD]
[TD]Italian_Carloforte:GRC14339280[/TD]
[/TR]
[TR]
[TD]0.02854679[/TD]
[TD]Italian_Piedmont

iedmont61[/TD]
[/TR]
[TR]
[TD]0.02863547[/TD]
[TD]French_Corsica:Corsica14708[/TD]
[/TR]
[TR]
[TD]0.02901771[/TD]
[TD]Swiss_Italian:Swiss_Italian3[/TD]
[/TR]
[TR]
[TD]0.02983226[/TD]
[TD]Italian_Lombardy:BGD28[/TD]
[/TR]
[TR]
[TD]0.02988361[/TD]
[TD]Italian_Piedmont:ItalyPiedmont127[/TD]
[/TR]
[TR]
[TD]0.03018880[/TD]
[TD]Italian_Bergamo:HGDP01147[/TD]
[/TR]
[TR]
[TD]0.03032490[/TD]
[TD]French_Provence

rovance2708[/TD]
[/TR]
[TR]
[TD]0.03053289[/TD]
[TD]Spanish_Baleares:HG01613[/TD]
[/TR]
[TR]
[TD]0.03073969[/TD]
[TD]Italian_Piedmont:ItalyPiedmont149[/TD]
[/TR]
[TR]
[TD]0.03080905[/TD]
[TD]Italian_Veneto:KF1800751[/TD]
[/TR]
[TR]
[TD]0.03094437[/TD]
[TD]Italian_Bergamo:HGDP01152[/TD]
[/TR]
[TR]
[TD]0.03133082[/TD]
[TD]Italian_Veneto:ALP022[/TD]
[/TR]
[TR]
[TD]0.03170370[/TD]
[TD]Spanish_Mallorca:MEL022[/TD]
[/TR]
[TR]
[TD]0.03175743[/TD]
[TD]Italian_Trentino-Alto-Adige:ALP395[/TD]
[/TR]
[TR]
[TD]0.03179973[/TD]
[TD]Swiss_Italian:Swiss_Italian2[/TD]
[/TR]
[TR]
[TD]0.03202325[/TD]
[TD]Italian_Veneto:KF1800772[/TD]
[/TR]
[TR]
[TD]0.03202815[/TD]
[TD]Italian_Trentino-Alto-Adige:ALP259[/TD]
[/TR]
[TR]
[TD]0.03223245[/TD]
[TD]French_Corsica:Corsica24508[/TD]
[/TR]
[TR]
[TD]0.03227046[/TD]
[TD]Italian_Tuscany:NA20502[/TD]
[/TR]
[/TABLE]
The Illyrian-related samples have very little Epi-Corded and Mako drift/WHG, which makes the Kyjatice-G?va, which have it, more "Balto-Slavic" in comparison.