Etymology and distribution of 堂徳.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
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Ratio of 堂徳.

カンマ区切りで複数の名字を指定できます。

Etymology of 堂徳

Distribution of 堂徳
Ranking
1 Fukui-ken(0.00239%)
2 Toyama-ken(0.00171%)
3 Ishikawa-ken(0.000342%)
4 Hokkaidou(0.000279%)
5 Chiba-ken(Very rare)
6 Saitama-ken(Very rare)
7 Kanagawa-ken(Very rare)
8 Oosaka-fu(Very rare)