Autograph Letter Signed (“Bunsen”) to Sir John Taylor Coleridge, 28 Hertford Street, London – c. 1840s–1850s)

Autograph letter signed, three pages on a bifolium. 11.2 × 18.4 cm.

An important autograph letter signed by the distinguished Prussian diplomat, scholar and statesman Baron von Bunsen, addressed to the eminent English jurist Sir John Taylor Coleridge and concerning the proposed reform of Prussian divorce law. The letter provides a remarkable insight into nineteenth-century comparative legal reform, documenting Bunsen’s efforts to obtain expert English legal opinion on behalf of the Prussian Crown.

Writing from 28 Hertford Street, London, Bunsen thanks Coleridge and his wife for a recent invitation before explaining that a prior engagement prevents his acceptance:

“Nothing could be more acceptable than your and Lady Coleridge’s kind invitation; I regret indeed that only half an hour ago I accepted the Archb. of York’s invitation for the same day & hour.”

The letter quickly turns to the matter which prompted the correspondence. Bunsen explains that he has been entrusted by the King with an important and difficult task:

“A very important, but equally difficult enterprise received from the King, as to the reform of our divorce law, makes it necessary for me to be better informed on the state of that important branch of legislation in England & its actual working, than I am, altho’ I am not quite unacquainted with it.”

Recognising Coleridge’s expertise, Bunsen requests a personal consultation:

“Knowing your kindness I shall hope to be allowed once an hour’s interview with you on the subject.”

The significance of the letter lies in this direct appeal for English legal knowledge. Bunsen was not seeking abstract opinion, but practical understanding of the operation of English matrimonial law and divorce procedure. The letter therefore records a moment of intellectual and legislative exchange between Britain and Prussia, with one of Europe’s leading diplomats consulting one of England’s foremost legal authorities regarding proposed reform of an important branch of civil law.

The “King” referred to is almost certainly Frederick William IV of Prussia (1795–1861), whom Bunsen served for many years as trusted adviser, diplomat and intermediary. Throughout his career Bunsen enjoyed unusually close access to the Prussian court and frequently acted as a conduit for political, religious and constitutional ideas circulating between Britain and the German states. The present letter appears to preserve evidence of precisely such a process, with English legal practice being examined as a possible model or point of reference for Prussian reform.

The recipient, Sir John Taylor Coleridge (1790–1876), was among the most distinguished English judges of the nineteenth century. A Judge of the Court of Queen’s Bench, scholar and influential legal thinker, he was exceptionally well placed to advise on the practical operation of English matrimonial law. The reference to “Lady Coleridge” strongly supports the identification of the recipient as Sir John rather than his son, the future Lord Coleridge.

The letter also offers an attractive glimpse into the intellectual and social networks of Victorian Britain. Bunsen notes his forthcoming movements:

“I remain in town till 18th Mai, when I intend going to Cambridge for a week, & then may have till the 10th, the Sports of the Grand Commemoration at Oxford…”

before adding that he and Mrs Bunsen would later spend the vacation with:

“our dear friends the Arnolds at Fox How.”

The reference is to the celebrated Arnold family, among the most influential intellectual and ecclesiastical families of Victorian England. Fox How, in the Lake District, became one of the principal centres of the Arnold circle and was associated with the family of Dr Thomas Arnold of Rugby. Such references underline the extent of Bunsen’s integration into the highest literary, academic, religious and political circles of his adopted country.

Christian Karl Josias von Bunsen ranks among the most significant diplomatic figures of the nineteenth century. Prussian ambassador to the Court of St James’s, close associate of Prince Albert, theologian, scholar and prolific author, he played a major role in fostering Anglo-Prussian intellectual and political relations. His correspondence is highly regarded for the insight it provides into European diplomacy, religious thought, education, legal reform and constitutional development during a transformative period of modern history.

A contemporary endorsement identifies the writer as:

“Baron von Christian Bunsen”

and preserves part of the letter’s early history and provenance.

We have not traced this specific letter in institutional holdings. Apparently unrecorded.

Condition: Folded as posted, with light creasing and minor handling wear. Small edge tears and slight wear at fold intersections, not affecting the text. Ink remains dark, clean and highly legible throughout. Very good condition overall.

A historically significant diplomatic and legal letter, documenting Bunsen’s consultation with Sir John Taylor Coleridge regarding the reform of Prussian divorce law under Frederick William IV, and providing a rare first-hand glimpse into the international exchange of legal ideas in nineteenth-century Europe.

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