Between 1314 and 1325, he held various offices in the Bishopric of Utrecht, such as Schout of Amersfoort and the Eem Valley.

Arnold was particularly interested in the medical science and founded the medical library of the hospital in IJsselstein He was married to Maria of Avenes, a daughter of bishop Guy of Utrecht.

They had a daughter named Guida, who married John I, Lord of Egmond.

Arnold died in 1363 and was buried in the Saint Nicholas church in IJsselstein.

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