At this low point of his career, the deposed Rǫgnvaldr appears to have gone into exile at Alan's court in Galloway. In 1228, whilst Óláfr and his chieftains were absent in Hebrides, the chronicle records of an invasion of Mann by Rǫgnvaldr, Alan, and Thomas fitz Roland. The attack appears to have resulted in the complete devastation of the southern half of the island, since the chronicle declares that it was almost reduced to a desert. The chronicle's report that Alan installed bailiffs on Mann, with instructions to collect tribute from the island and send it back to Galloway, may reveal the price Rǫgnvaldr had to pay for Alan's support in the affair. In fact, Rǫgnvaldr's role in the takeover is unrecorded. Suffering serious setbacks at the hands of his enemies, Óláfr reached out for English assistance against his half-brother, as evidenced by correspondence between Henry III and Óláfr in which the latter alluded to aggression dealt from Alan. Eventually, after Alan vacated Mann for home, Óláfr and his forces reappeared on the island, and routed the remaining Gallovidians; and thus, the chronicle declares, peace was restored to Mann.