The original evidence is from 《南明史》 p. 6, however, 《南明史》p. 845 gives U+25133 𥄳:


▲ 《南明史》 （钱海岳: 中華書局, 2006, [ISBN 9787101044294]）, p. 845

Earlier historical evidence also give 𥄳:


▲ 史語所藏鈔本崇禎長編（抄本）卷10 p. 27


▲ 1934）清世祖實錄卷30 folio 24b


▲ {{《明史》（清乾隆刊本）卷100 folio 31a}}

It is likely that ⿰氵⿱罒永 is derived from ⿱罒永 as is shown in 《東南紀事》provided in comment #8620. ⿱罒永 itself is a misinterpreted form of 𥄳, which already contains the water radical required by the generation name 肅. I suggest pending more independent evidence.

▲ 《南明史》 （钱海岳: 中華書局, 2006, [ISBN 9787101044294]）, p. 1472

The evidence 2 and the new evidence in #14416 are still questionable because earlier historical evidence give 濁:


▲ 《陸菊隠先生文集》（清鈔本）卷15

The time, location and plot all match the description in 《南明史》, so 朱統濁 and 朱統⿰氵⿱罒永 both refer to the same person.